Re: [mailop] Anyone from Prodigy

On 2024-05-29 at 02:13:50 UTC-0400 (Wed, 29 May 2024 06:13:50 +) Mark Dale via mailop is rumored to have said: Is there anyone from Prodigy on the list? We're seeing mail blocked that is addressed to @sbcglobal.net, @att.net And no response from postmaster[AT]prodigy nor

Re: [mailop] (Mis)use of DKIM's length tag and it's impact on DMARC and BIMI

On 2024-05-18 at 17:12:11 UTC-0400 (Sat, 18 May 2024 21:12:11 +) Gellner, Oliver via mailop is rumored to have said: On 18.05.2024 at 21:02 Dave Crocker via mailop wrote: [...] Seems like the right approach is to seek community-wide pressure to deprecate it. First through operational

Re: [mailop] Does iCloud accept forwards?

On 2024-05-16 at 23:40:57 UTC-0400 (Thu, 16 May 2024 20:40:57 -0700) Mark Fletcher via mailop is rumored to have said: Does the above mean that the message we sent was forwarded on from siark.com to an iCloud address? Yes. That's a SRS address. Invented and deployed to preserve viability

Re: [mailop] (Mis)use of DKIM's length tag and it's impact on DMARC and BIMI

On 2024-05-17 at 14:38:00 UTC-0400 (Fri, 17 May 2024 18:38:00 +) Gellner, Oliver via mailop is rumored to have said: While it’s not new information that the length attribute of DKIM poses a security risk, it’s still worthwhile to draw attention to it every once in a while and the usual

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

On 2024-04-19 at 07:21:47 UTC-0400 (Fri, 19 Apr 2024 12:21:47 +0100) Sebastian Arcus via mailop is rumored to have said: On 18/04/2024 14:05, Marco Moock via mailop wrote: Am 18.04.2024 schrieb Bill Cole via mailop : I can't say that Spamhaus lists IPs that engage in the abusive practice

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

I can't say that Spamhaus lists IPs that engage in the abusive practice of remote sender verification but I would be happy to hear that they are doing so and CSS+XBL listing is a reasonable expression of that sort of world-hostile behavior. (I saw your Exim-Users discussion) On 2024-04-18

Re: [mailop] Reason for being listed at Spamhaus CSS and XBL unclear

On 2024-04-18 at 07:18:46 UTC-0400 (Thu, 18 Apr 2024 13:18:46 +0200) Matus UHLAR - fantomas via mailop is rumored to have said: If you have more than one IP for your network, I recommend use separate IP to translate connections from/to your mailserver. +1 +1000 Don't make your mail server

Re: [mailop] Anyone from Google - Sudden Gmail bounces??

On 2024-03-31 at 10:21:40 UTC-0400 (Sun, 31 Mar 2024 17:21:40 +0300) Odhiambo Washington via mailop is rumored to have said: I have just had several email bounces from a mailing list that I have been running since 2005. I have contacted Google using this form

Re: [mailop] Debt Collection Client Email Servers

On 2024-03-25 at 12:53:31 UTC-0400 (Mon, 25 Mar 2024 17:53:31 +0100) Jaroslaw Rafa via mailop is rumored to have said: Does USA have a government-certfied platform for electronic delivery of documents Not for general use. The IRS is piloting a direct tax filing system for a small number of

Re: [mailop] Debt Collection Client Email Servers

On 2024-03-25 at 11:47:11 UTC-0400 (Mon, 25 Mar 2024 15:47:11 +) Michael Irvine via mailop is rumored to have said: how can we guarantee it to the inbox if many of the users mark it as SPAM and potentially blocks other communication. You cannot. The fact that you have an email address is

Re: [mailop] [spamhaus] de-listing requests successful, but only for a couple of days.

On 2024-03-14 at 20:26:00 UTC-0400 (Thu, 14 Mar 2024 17:26:00 -0700) Jay Hennigan via mailop is rumored to have said: On 3/14/24 15:18, Michael Grimm via mailop wrote: OVH is sharing a /64 subnet among multiple customers since they started their public cloud project. You are only provided

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

On 2024-03-13 at 14:30:40 UTC-0400 (Wed, 13 Mar 2024 20:30:40 +0200 (EET)) Harald Hannelius via mailop is rumored to have said: Are there SMTP-"clients" that actually are able to back down from STARTTLS and continue unencrypted? I'm not aware of anyway to de-escalate after a STARTTLS on the

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

On 2024-03-13 at 14:22:55 UTC-0400 (Wed, 13 Mar 2024 13:22:55 -0500) Robert Giles via mailop is rumored to have said: Sort of surprising, but I don't think JPMorgan Chase (large U.S. bank) is able to do TLS 1.2+ from their outbound JavaMail infrastructure in 159.53.111.0/24: I can confirm

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

On 2024-03-13 at 10:56:53 UTC-0400 (Wed, 13 Mar 2024 15:56:53 +0100) Marco Moock via mailop is rumored to have said: Am 13.03.2024 um 10:43:27 Uhr schrieb Bill Cole via mailop: Without one, disabling them is a cargo-cult praxis that is worse than any false sense of security provided

Re: [mailop] Ubuntu Noble/24.04 - TLS 1.0, 1.1 and DTLS 1.0 are forcefully disabled

On 2024-03-13 at 07:28:18 UTC-0400 (Wed, 13 Mar 2024 11:28:18 + (UTC)) L. Mark Stone via mailop is rumored to have said: > FWIW, our view is that poor encryption can be worse than no encryption, as it > can give the participants a false sense of security. This seems like a good > move to

Re: [mailop] % in SRS ?

On 2024-03-08 at 12:07:23 UTC-0500 (Fri, 08 Mar 2024 17:07:23 +) Julian Bradfield via mailop is rumored to have said: Is there any reason not to use the old routing character '%' instead? Yes: it is an old routing character As such, some sites may misinterpret it in ways that are NOT

Re: [mailop] freenet.de routing issues anyone? (Cloudflare-OVH issue?)

On 2024-03-08 at 09:13:32 UTC-0500 (Fri, 8 Mar 2024 15:13:32 +0100) Stefano Bagnara via mailop is rumored to have said: Well, I undestand you all hate OVH, but this really doesn't look like an intended block. Sure it does. I tested that when I log to my @freenet.de email I am not able to

Re: [mailop] Filter out emoji from email adresses

On 2024-03-06 at 18:51:10 UTC-0500 (Wed, 6 Mar 2024 23:51:10 + (GMT)) Andrew C Aitchison via mailop is rumored to have said: On Wed, 6 Mar 2024, John Levine via mailop wrote: Right. I am aware of communities of EAI mail users in India and Thailand, but not anywhere else. You might

Re: [mailop] MTA-STS errors?

On 2024-03-06 at 13:35:10 UTC-0500 (Wed, 6 Mar 2024 13:35:10 -0500) Michael W. Lucas via mailop is rumored to have said: On Wed, Mar 06, 2024 at 01:17:43PM -0500, Bill Cole via mailop wrote: Call me crazy, but if the policy changes on sub-day cadence, I don't think I want that email anyway

Re: [mailop] MTA-STS errors?

On 2024-03-06 at 12:44:18 UTC-0500 (Wed, 6 Mar 2024 12:44:18 -0500) Michael W. Lucas via mailop is rumored to have said: On Wed, Mar 06, 2024 at 05:46:06PM +0100, Bernardo Reino via mailop wrote: On Wed, 6 Mar 2024, Michael W. Lucas via mailop wrote: ... Apparently "Google will only process

Re: [mailop] Filter out emoji from email adresses

On 2024-03-06 at 12:30:30 UTC-0500 (Wed, 06 Mar 2024 17:30:30 +) Slavko via mailop is rumored to have said: Dňa 6. marca 2024 15:52:47 UTC používateľ John Levine via mailop napísal: There's an extension called SMTPUTF8, informally known as EAI for Email Address Internationalization,

Re: [mailop] Anyone from Yahoo?

On 2024-03-05 at 18:12:05 UTC-0500 (Tue, 5 Mar 2024 19:12:05 -0400) Thomas Johnson via mailop is rumored to have said: Hello everyone- We had an incident where a trusted connection from Microsoft had a nice large dump of spam - it appears that several of their customers were compromised.

Re: [mailop] Any Apple guys, with knowledge of their networks shed some light on this IP Space?

On 2024-03-04 at 18:00:24 UTC-0500 (Mon, 4 Mar 2024 15:00:24 -0800) Michael Peddemors via mailop is rumored to have said: Does anyone know what this IP space is assigned for in general? Tracking some new threats.. inetnum:144.178.0.0 - 144.178.63.255 descr: Apple Inc status:

Re: [mailop] PTR check mechanism / gmail

On 2024-03-03 at 14:36:25 UTC-0500 (Sun, 3 Mar 2024 20:36:25 +0100) Marco Moock via mailop is rumored to have said: Most server require that the PTR points to a domain name like mail.example.org and that has the corresponding A/ records that point to the IP address. "Most" is probably an

Re: [mailop] Outgoing Spam from Microsoft IPs

On 2024-02-19 at 08:26:18 UTC-0500 (Mon, 19 Feb 2024 13:26:18 +) Slavko via mailop is rumored to have said: Dňa 19. februára 2024 12:46:51 UTC používateľ "Gellner, Oliver via mailop" napísal: ...the big email services providers need to make the first step in a coordinated procedure.

Re: [mailop] Verifying receipients?

On 2024-02-16 at 15:49:12 UTC-0500 (Fri, 16 Feb 2024 14:49:12 -0600) Jesse Hathaway via mailop is rumored to have said: What is this current attitude on using something like Postfix's `reject_unverified_recipient`? ONLY use this when you are relaying for specific domains that you service

Re: [mailop] Why is mail forwarding such a mess?

On 2024-02-12 at 14:23:39 UTC-0500 (Mon, 12 Feb 2024 20:23:39 +0100) Thomas Walter via mailop is rumored to have said: > Hey Bill, > > On 12.02.24 17:31, Bill Cole via mailop wrote: >> On 2024-02-12 at 07:13:13 UTC-0500 (Mon, 12 Feb 2024 13:13:13 +0100) >> Thomas Walter via

Re: [mailop] Why is mail forwarding such a mess?

On 2024-02-12 at 07:13:13 UTC-0500 (Mon, 12 Feb 2024 13:13:13 +0100) Thomas Walter via mailop is rumored to have said: > There are other issues with this though. For example you are exposing > information you might not want to. Beyond that, it would enable both malicious reflection attacks and

Re: [mailop] problem setting up open-dmarc

On 2024-02-07 at 05:40:50 UTC-0500 (Wed, 7 Feb 2024 12:40:50 +0200) Taavi Eomäe via mailop is rumored to have said: [Snip. Quoting Michael P.] >> Unless you are a big budget email sender, don't stress to much.  Maybe >> tomorrow we will need something like DMARC, but thankfully not yet today. >

Re: [mailop] DMARC on srs forwarding domains?

On 2024-02-02 at 10:26:55 UTC-0500 (Fri, 2 Feb 2024 16:26:55 +0100) Kai Bojens via mailop is rumored to have said: Am 02.02.24 um 16:08 schrieb Mark E. Jeftovic via mailop: We're having a bit of a theological debate internally on whether to implement DMARC on our SRS forwarder domains.

Re: [mailop] [External] seeking a spamtrap milter

On 2024-01-23 at 15:35:45 UTC-0500 (Tue, 23 Jan 2024 12:35:45 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: > spamware seems to fall back to the "A" and "" records in the > absence of an MX records Also known as "doing the right thing." > (and sometimes in

Re: [mailop] [External] seeking a spamtrap milter

On 2024-01-23 at 15:00:01 UTC-0500 (Tue, 23 Jan 2024 15:00:01 -0500) Kevin A. McGrail via mailop is rumored to have said: Hi folks, I suspect this exists, but can't come up with the right search. I have domains that should never receive mail. I'd like a milter that looks for mail to those

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 15:42:49 UTC-0500 (Fri, 19 Jan 2024 12:42:49 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: Spamhaus makes the DROP data available (which I believe is also included in their SBL), which is useful for using firewalls to just block or ignore

Re: [mailop] Anyone else noticing an increase in spam from Office365 distribution lists?

On 2024-01-19 at 07:03:35 UTC-0500 (Fri, 19 Jan 2024 12:03:35 +) Simon Arlott via mailop is rumored to have said: On 19/01/2024 00:33, Randolf Richardson, Postmaster via mailop wrote: The blacklists seem to be blocking mostly the ones that send directly from @.onmicrosoft.com

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 09:31:19 UTC-0500 (Fri, 19 Jan 2024 15:31:19 +0100) hg user via mailop is rumored to have said: Ok sorry not "most" but "some may"... My checkpoint rep said that they get their reputation lists from other companies... is it wrong ? In all likelihood that means they don't

Re: [mailop] Spamhaus contact?

On 2024-01-19 at 05:31:12 UTC-0500 (Fri, 19 Jan 2024 10:31:12 +) Graeme Fowler via mailop is rumored to have said: On 19 January 2024 06:13:20 hg user via mailop wrote: Since most RBLs exchange data Small pedantic point: DNSBLs, not RBLs. As an erstwhile MAPS employee, the

Re: [mailop] o365 outbound senders.. Strange Failures sending .. widespread reports

On 2023-12-19 at 01:12:56 UTC-0500 (Tue, 19 Dec 2023 07:12:56 +0100) Benny Pedersen via mailop is rumored to have said: EHLO after STARTTLS, clearly bots only Nope. Vide: Dec 19 08:31:47 shiny postfix/smtpd[94038]: disconnect from mxout1-he-de.apache.org[95.216.194.37] ehlo=2 starttls=1

Re: [mailop] ECDSA DKIM validation?

On 2023-12-18 at 15:03:16 UTC-0500 (Mon, 18 Dec 2023 15:03:16 -0500) Michael W. Lucas via mailop is rumored to have said: > Hi, > > Last I checked a few years ago, validation of ECDSA DKIM keys was > still iffy on deployed servers. Has the situation improved? Can we > recommend ECDSA DKIM yet

Re: [mailop] Merry Christmas from Google?

On 2023-12-17 at 04:45:04 UTC-0500 (Sun, 17 Dec 2023 10:45:04 +0100) Benny Pedersen via mailop is rumored to have said: false, every forwarder changes envelope sender, No matter how many times you say this, it remains a dangerously misleading lie. If, on a Unix-like system running Postfix

Re: [mailop] Hotmail complains about their own mail

On 2023-12-16 at 11:31:18 UTC-0500 (Sat, 16 Dec 2023 17:31:18 +0100) Thomas Walter via mailop is rumored to have said: > On 16.12.23 12:11, ml+mailop--- via mailop wrote: >> On Sat, Dec 16, 2023, Thomas Walter via mailop wrote: >> >>> 2. Our server bounces with 550 5.1.1 User doesn't exist. >>

Re: [mailop] Another very strange microsoft originated email??

On 2023-12-07 at 16:20:23 UTC-0500 (Thu, 7 Dec 2023 13:20:23 -0800) Michael Peddemors via mailop is rumored to have said: For the record, the command line 'whois' tool is getting long in the tooth, and the maintainer isnt' really interested in updating the tools, database.. (We offered to

Re: [mailop] Convincing clients of the importance of eMail recipient consent for mailing list subscriptions

On 2023-11-28 at 08:39:13 UTC-0500 (Tue, 28 Nov 2023 13:39:13 +) Laura Atkins via mailop is rumored to have said: Hell, even if you are dishonest and make the costs of deliverability problems higher than they are it can still be challenging to make COI look more profitable. I really

Re: [mailop] Convincing clients of the importance of eMail recipient consent for mailing list subscriptions

On 2023-11-27 at 13:42:58 UTC-0500 (Mon, 27 Nov 2023 10:42:58 -0800) Randolf Richardson, Postmaster via mailop is rumored to have said: What have you found to be some of the best approaches to convince clients that the confirmed opt-in process is necessary for operating eMail lists?

Re: [mailop] Historical spam loads - was Re: Google rate-limiting more aggressively than usual?

On 2023-11-19 at 14:02:04 UTC-0500 (Sun, 19 Nov 2023 19:02:04 + (GMT)) Andrew C Aitchison via mailop is rumored to have said: On Sun, 19 Nov 2023, Bill Cole via mailop wrote: On 2023-11-19 at 06:59:37 UTC-0500 (Sun, 19 Nov 2023 12:59:37 +0100) Alessandro Vesely via mailop is rumored

Re: [mailop] Google rate-limiting more aggressively than usual?

On 2023-11-19 at 06:59:37 UTC-0500 (Sun, 19 Nov 2023 12:59:37 +0100) Alessandro Vesely via mailop is rumored to have said: I don't think someone can drop almost all mail and still call itself a mail server. Were you running a mail system in the early-mid 2000s? At that time, I tracked the

Re: [mailop] If one signature is good, 72 signatures must be better

On 2023-11-16 at 06:49:03 UTC-0500 (16 Nov 2023 06:49:03 -0500) John Levine via mailop is rumored to have said: It appears that Gellner, Oliver via mailop said: On 16.11.2023 at 03:05 John Levine via mailop wrote: I just got a couple of quite remarkable messages from Sabre's Tripcase

Re: [mailop] How to handle hostname and PTR mismatch?

On 2023-10-27 at 09:19:33 UTC-0400 (Fri, 27 Oct 2023 15:19:33 +0200) Cyril - ImprovMX via mailop is rumored to have said: Hi! It's been quite common to refuse a server connecting that doesn't have a proper PTR, but I was wondering if there was any recommendation (either official via RFC or

Re: [mailop] fastmail and sender score snafu

On 2023-10-09 at 03:46:08 UTC-0400 (Mon, 9 Oct 2023 07:46:08 +) Gellner, Oliver via mailop is rumored to have said: Postfix default of the maximum queue lifetime is 5 days: https://www.postfix.org/postconf.5.html#maximal_queue_lifetime One month is very long, but I usually see systems to

Re: [mailop] Zero-day RCE for exim - whacky stats?

On 2023-09-30 at 03:36:02 UTC-0400 (Sat, 30 Sep 2023 08:36:02 +0100 (BST)) Andrew C Aitchison via mailop is rumored to have said: On Sat, 30 Sep 2023, Jay R. Ashworth via mailop wrote: I haven't even heard exim *mentioned* in like 20 years; these stats can't be right, can they?

Re: [mailop] Gmail says "Message bounced due to organizational settings."

On 2023-09-26 at 20:57:10 UTC-0400 (26 Sep 2023 20:57:10 -0400) John Levine via mailop is rumored to have said: "Message bounced due to organizational settings." It should only be possible to get that from GMail if the sender is part of a GApps organization that has organization-wide rules

Re: [mailop] Amazon SES using SAME sender Domain for multiple customer?

On 2023-09-25 at 08:49:51 UTC-0400 (Mon, 25 Sep 2023 12:49:51 +) Mike Hillyer via mailop is rumored to have said: They do encourage users to send from their own domain, but they do not require it before using Amazon SES. It might be tactically useful for people who can take the FP hit to

Re: [mailop] Authentication Bounces by Gmail

On 2023-09-19 at 17:52:33 UTC-0400 (Tue, 19 Sep 2023 14:52:33 -0700) Bill Sommerfeld via mailop is rumored to have said: A similar form of damage I just noticed today was an outsourced-to-Microsoft mail service breaking a forwarded message's DKIM signature when it rewrote: From: Reply-To:

Re: [mailop] Authentication Bounces by Gmail

On 2023-09-19 at 11:46:28 UTC-0400 (Tue, 19 Sep 2023 17:46:28 +0200) Alessandro Vesely via mailop is rumored to have said: Comparing the bounced message with the original, it turned out the angle brackets were removed from the From: address, which is legal since there was no display-name, but

Re: [mailop] Google - Messages with multiple addresses in From: header are not accepted.

On 2023-09-18 at 10:53:16 UTC-0400 (Mon, 18 Sep 2023 09:53:16 -0500) Scott Mutter via mailop is rumored to have said: I'm not sure if a leading space in a message header is proper. Nope. Any leading whitespace in a header line indicates that it is logically part of the prior header. You're

Re: [mailop] Increase of SSL/TLS errors

regards, Camille Le 12/09/2023 à 00:26, Bill Cole via mailop a écrit : On 2023-09-11 at 17:05:00 UTC-0400 (Mon, 11 Sep 2023 23:05:00 +0200) Camille - Clean Mailbox via mailop is rumored to have said: Dear co-listers, I'm seeing an increase of SSL/TLS errors for incoming emails to our service over

Re: [mailop] Increase of SSL/TLS errors

On 2023-09-11 at 17:05:00 UTC-0400 (Mon, 11 Sep 2023 23:05:00 +0200) Camille - Clean Mailbox via mailop is rumored to have said: Dear co-listers, I'm seeing an increase of SSL/TLS errors for incoming emails to our service over the last few weeks. Example from Mailjet, which is (I suppose)

Re: [mailop] New Validity policy for paid FBL (ARF)

On 2023-09-11 at 07:24:55 UTC-0400 (Mon, 11 Sep 2023 13:24:55 +0200) Support 3Hound via mailop is rumored to have said: Dear list, I would like to understand what the community think about the new Validity universal feedback loop service that is switching to a paid service starting 21

Re: [mailop] hotmail.com SPF forgot IPv6

On 2023-08-21 at 16:33:07 UTC-0400 (21 Aug 2023 16:33:07 -0400) John Levine via mailop is rumored to have said: It appears that Gellner, Oliver via mailop said: On 19.08.2023 at 19:01 Jarland Donnell via mailop wrote: Is "-all" not indeed a policy in SPF, directed by the domain owner? I

Re: [mailop] AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-13 at 12:06:45 UTC-0400 (Thu, 13 Jul 2023 11:06:45 -0500) Grant Taylor via mailop is rumored to have said: On 7/13/23 10:49 AM, Bill Cole via mailop wrote: It's not at all logically hard to meet that arbitrary requirement, you just need a zone cut everywhere you have a MX record

Re: [mailop] [E] Re: AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-13 at 10:15:27 UTC-0400 (Thu, 13 Jul 2023 07:15:27 -0700) Marcel Becker via mailop is rumored to have said: No. I might as well reveal the actual domain names involved, since it's not particularly secret: it's "westfir.or.us" and "ci.westfir.or.us". It's actually not that

Re: [mailop] AOL/Yahoo requiring SOA record for MAIL FROM domain name?

On 2023-07-12 at 18:38:05 UTC-0400 (Wed, 12 Jul 2023 15:38:05 -0700) Robert L Mathews via mailop is rumored to have said: Today I had a customer complain that mail they send to AOL or Yahoo addresses was being returned with: 451 Message temporarily deferred due to unresolvable RFC.5321 from

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-12 at 18:53:31 UTC-0400 (Wed, 12 Jul 2023 15:53:31 -0700) Michael Peddemors via mailop is rumored to have said: On 2023-07-12 12:53, Jaroslaw Rafa via mailop wrote: Most of regular consumer email users don't have any reason for this. As Bill Cole, whom I was replying to, wrote -

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-12 at 05:46:47 UTC-0400 (Wed, 12 Jul 2023 11:46:47 +0200) Jaroslaw Rafa via mailop is rumored to have said: Exactly, because from my experience SPF, DKIM and DMARC bring very little (if anything at all) to security. I TRUTH. For the overwhelming majority of sending systems, the

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-11 at 20:58:19 UTC-0400 (11 Jul 2023 20:58:19 -0400) John Levine via mailop is rumored to have said: It appears that Grant Taylor via mailop said: On 7/11/23 2:48 PM, John Levine via mailop wrote: If your From: domain has neither an A nor an MX, I don't think you're going to get

Re: [mailop] SPF +all considered harmful

On 2023-07-11 at 13:49:32 UTC-0400 (Tue, 11 Jul 2023 19:49:32 +0200) Benny Pedersen via mailop is rumored to have said: > Bill Cole via mailop skrev den 2023-07-11 19:01: >> On 2023-07-11 at 11:08:23 UTC-0400 (Tue, 11 Jul 2023 17:08:23 +0200) >> Benny Pedersen via mailop >&g

Re: [mailop] SPF +all considered harmful

On 2023-07-11 at 11:08:23 UTC-0400 (Tue, 11 Jul 2023 17:08:23 +0200) Benny Pedersen via mailop is rumored to have said: > direct to mx will have spf pass without +all, on next hub envelope sender > changes, so new spf problem when next hub forwards mails, You keep repeating this (and

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-11 at 06:28:47 UTC-0400 (Tue, 11 Jul 2023 12:28:47 +0200) Jaroslaw Rafa via mailop is rumored to have said: And if mail *is* E2E encrypted, transport level encryption is basically redundant... Not really. It is worthwhile to protect the details of a SMTP session on the wire,

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-11 at 05:26:25 UTC-0400 (Tue, 11 Jul 2023 11:26:25 +0200) Jaroslaw Rafa via mailop is rumored to have said: These are Google requirements, not SMTP protocol requirements. We should not confuse one with the other. Right, and that may be why Laura specifically referred to B2B mail.

Re: [mailop] Guide for setting up a mail server ?

On 2023-07-11 at 04:05:42 UTC-0400 (Tue, 11 Jul 2023 09:05:42 +0100) Laura Atkins via mailop is rumored to have said: B2B email requires a MX (like, if you don’t have an MX do you even email?) Surprisingly, A-record fallback works just fine for B2B email. No one notices. Or at least no one

Re: [mailop] Cannot talk to Sharedband

On 2023-06-24 at 05:49:30 UTC-0400 (Sat, 24 Jun 2023 11:49:30 +0200) Alessandro Vesely via mailop is rumored to have said: I had a bounce: Reporting-MTA: dns;PR3PR05MB7547.eurprd05.prod.outlook.com Received-From-MTA: dns;wmail.tana.it Arrival-Date: Sat, 24 Jun 2023 03:03:07 +

Re: [mailop] greylisting, SendGrid is deleting your mail

On 2023-06-24 at 00:49:46 UTC-0400 (24 Jun 2023 00:49:46 -0400) John Levine via mailop is rumored to have said: It appears that Al Iverson via mailop said: What if we just got to the heart of the matter and admitted that greylisting is useless 2023? Because it's still quite useful if you

Re: [mailop] SendGrid is deleting your mail

On 2023-06-24 at 00:13:56 UTC-0400 (Fri, 23 Jun 2023 23:13:56 -0500) Al Iverson via mailop is rumored to have said: What if we just got to the heart of the matter and admitted that greylisting is useless 2023? +1 It was always a cute trick that just happened to mostly work but unlike

Re: [mailop] SendGrid is deleting your mail

[NOTE: There's absolutely never any need to CC me individually when posting to this or any other list I'm on. Or not on.] On 2023-06-23 at 12:46:58 UTC-0400 (Fri, 23 Jun 2023 09:46:58 -0700) Luke via mailop is rumored to have said: That's right, Bill. It's so simple. All the ESPs and MTAs out

Re: [mailop] SendGrid is deleting your mail

On 2023-06-22 at 19:14:15 UTC-0400 (Thu, 22 Jun 2023 16:14:15 -0700) Luke via mailop is rumored to have said: Unfortunately we cant make a rule that retries all 4xx and doesn't retry all 5xx. Despite very smart, well intended people writing RFCs and other specs that make this feel super

Re: [mailop] [EXTERNAL] Re: Strange mail delivery from microsoft

On 2023-06-20 at 02:45:04 UTC-0400 (Tue, 20 Jun 2023 07:45:04 +0100) Klaus Ethgen via mailop is rumored to have said: Am Mo den 19. Jun 2023 um 21:55 schrieb Michael Wise via mailop: If you're using GreyListing, know that a given email will not be coming from the same IP address twice. The

Re: [mailop] Port 25 Pingback?

On 2023-06-16 at 13:37:19 UTC-0400 (Fri, 16 Jun 2023 13:37:19 -0400) John Possidente via mailop is rumored to have said: > A sender of legally mandated bulk mail who are very conscious of making > sure they're dotting every i and crossing every t (because they're required > to) asked me today

Re: [mailop] DMARC check case sensitive domains

On 2023-06-13 at 12:40:57 UTC-0400 (Tue, 13 Jun 2023 18:40:57 +0200) Sander Smeenk via mailop is rumored to have said: The header from address doesn't matter. So long as the domain used in the envelope sender is capitalized it fails DMARC check. This still perplexes me a bit. The mail tested

Re: [mailop] DMARC check case sensitive domains

On 2023-06-13 at 08:03:20 UTC-0400 (Tue, 13 Jun 2023 14:03:20 +0200) Sander Smeenk via mailop is rumored to have said: Hi list, Long time lurker here. Ran into an issue where one of my customers is sending mail with the sender- and header-from domain capitalized: foou...@example.tld. This

Re: [mailop] Noticed Google now suggests changing envelope sender for forwarding

On 2023-06-01 at 13:58:22 UTC-0400 (Thu, 01 Jun 2023 19:58:22 +0200) Benny Pedersen via mailop is rumored to have said: > default in all mta, at least postfix is to use new envelope sender so spf > works from new sender domain, why not keep it simple ? That is simply FALSE. Sendmail and

Re: [mailop] push and pull, Microsoft Office365 not rejecting emails when instructed so by SPF recored?

On 2023-05-30 at 21:47:55 UTC-0400 (30 May 2023 21:47:55 -0400) John R Levine via mailop is rumored to have said: [.] I am fairly sure that in the U.S. there is generally no obligation on the bank to prove that a customer has seen a statement. Right. And financial institutions handle whatever

Re: [mailop] UCEPROTECT L2 fact

On 2023-05-22 at 16:03:32 UTC-0400 (Mon, 22 May 2023 21:03:32 +0100) John Devine via mailop is rumored to have said: Hmmm I started using dnsbl-3.uceprotect.net a few months ago, should I desist? Only if you want to receive all of your legitimate mail. If

Re: [mailop] UCEPROTECT L2 fact

On 2023-05-22 at 12:01:52 UTC-0400 (Mon, 22 May 2023 11:01:52 -0500) Jarland Donnell via mailop is rumored to have said: I have not personally run into anyone using L3 or L2 in my experiences thus far. Their L1 list is what most, if anyone, would be subscribing to I would think. Their L1 list

Re: [mailop] Massive botnet going off today?

On 2023-05-15 at 13:31:47 UTC-0400 (Mon, 15 May 2023 17:31:47 +) Slavko via mailop is rumored to have said: Dňa 15. mája 2023 15:42:14 UTC používateľ "Taavi Eomäe via mailop" napísal: Here's a complete list of the IPs we've seen exhibit behavior specific to this botnet. If anyone's

Re: [mailop] Massive botnet going off today?

On 2023-05-13 at 15:09:50 UTC-0400 (Sat, 13 May 2023 14:09:50 -0500) Jarland Donnell via mailop is rumored to have said: Curious if anyone else is seeing an event similar to this. Inbound SMTP traffic is the median of the past 5 Saturdays through 20:00 UTC on the largest system I wrangle.

Re: [mailop] Thoughts on envelope address local-part length limits

On 2023-05-12 at 16:52:38 UTC-0400 (Fri, 12 May 2023 13:52:38 -0700) Brandon Long via mailop is rumored to have said: On Fri, May 12, 2023 at 8:54 AM Bill Cole via mailop wrote: On 2023-05-12 at 09:40:14 UTC-0400 (Fri, 12 May 2023 13:40:14 +) Paul Gregg via mailop is rumored to have

Re: [mailop] Thoughts on envelope address local-part length limits

On 2023-05-12 at 09:40:14 UTC-0400 (Fri, 12 May 2023 13:40:14 +) Paul Gregg via mailop is rumored to have said: I suspect with verp/bounce addressing widely in use now, 64 octets just isn't enough these days. Hogwash. 64 mail-safe octets is adequate for every domain to give a unique

Re: [mailop] United Airlines / mileageplus DNS/rDNS mismatch issue

On 2023-05-09 at 16:17:57 UTC-0400 (Tue, 9 May 2023 20:17:57 +) Gellner, Oliver via mailop is rumored to have said: I’d be surprised if there are many members on this list whose systems do not penalize connections from IP addresses without a fully confirmed reverse DNS entry one way or

Re: [mailop] AT has eliminated their DNSBL team?

Just to close this loop: I resent my report this evening and got an autoreply as normal, so I guess AT hasn't gone Twitter on us... On 2023-05-06 at 16:53:58 UTC-0400 (Sat, 06 May 2023 16:53:58 -0400) Bill Cole via mailop is rumored to have said: For unknown reasons, I got one

Re: [mailop] PSL: SOA record per subdomain required?

On 2023-05-07 at 16:53:51 UTC-0400 (Sun, 7 May 2023 22:53:51 +0200) Carsten Schiefner via mailop is rumored to have said: Hi John, Am 07.05.2023 um 20:02 schrieb John Levine via mailop : […] The same thing applies to all of these names, all in the PSL: dyn-berlin.de in-berlin.de

Re: [mailop] Yahoo: SOA record per subdomain required?!

On 2023-05-07 at 15:12:54 UTC-0400 (Sun, 7 May 2023 19:12:54 +) Gellner, Oliver via mailop is rumored to have said: While I’m not affiliated with Yahoo, I see no reason to bash them in this regard. To reduce spam they don’t want to accept emails from made-up / non-existing domains, which

Re: [mailop] Yahoo: SOA record per subdomain required?!

On 2023-05-06 at 12:44:26 UTC-0400 (Sat, 6 May 2023 18:44:26 +0200) Christian Seitz via mailop is rumored to have said: Hello, we are a small not-for-profit ISP in Germany and having some issues with Yahoo since April. All emails from subdomains are no longer being accepted by the Yahoo

[mailop] AT has eliminated their DNSBL team?

For unknown reasons, I got one of these tossed at me by a customer who inexplicably wants to send mail to an @att.net address Action: failed Status: 5.3.0 Remote-MTA: dns; al-ip4-mx-vip1.prodigy.net Diagnostic-Code: smtp; 553 5.3.0 alph774 DNSBL:RBL 521<

Re: [mailop] Receivers behavior when seeing a new header

On 2023-05-04 at 09:35:44 UTC-0400 (Thu, 4 May 2023 13:35:44 +) Benjamin BILLON via mailop is rumored to have said: For the receivers out here, how would _you_ react upon seeing a new header, and this header in particular? I work with SMB mail (it's a thing for companies who haven't been

Re: [mailop] DKIM with 3072-bit or 4096-bit RSA signatures

On 2023-04-26 at 19:59:08 UTC-0400 (Thu, 27 Apr 2023 09:59:08 +1000) Matt Palmer via mailop is rumored to have said: [...] I can see how what I said *could* be misinterpreted as being in support of using DKIM for non-repudiability, but I can assure you that wasn't my intent. It was an

Re: [mailop] SPF behavior on email forwarding

On 2023-04-14 at 11:20:22 UTC-0400 (14 Apr 2023 11:20:22 -0400) John Levine via mailop is rumored to have said: It appears that Jaroslaw Rafa via mailop said: Dnia 14.04.2023 o godz. 14:11:49 Slavko via mailop pisze: In other words, SPF check is not something what helps with SPAM here,

Re: [mailop] SPF behavior on email forwarding

On 2023-04-14 at 08:45:20 UTC-0400 (Fri, 14 Apr 2023 14:45:20 +0200) Jaroslaw Rafa via mailop is rumored to have said: It's a well-known fact since SPF appeared, that SPF breaks forwarding. People say nowadays "forwarding breaks SPF", but I prefer to say it the other way, because forwarding

Re: [mailop] mailgun anybody? (variable sender address) time

On 2023-03-27 at 06:46:04 UTC-0400 (Mon, 27 Mar 2023 13:46:04 +0300) Lena--- via mailop is rumored to have said: [...] For NS I currently use the registrar. Its web-interface allowed me to create the TXT record for a selector. The parent _domainkey - NXDOMAIN. So this isn't what you're

Re: [mailop] mailgun anybody? (variable sender address) time

On 2023-03-24 at 18:01:50 UTC-0400 (Fri, 24 Mar 2023 23:01:50 +0100) Heiko Schlittermann via mailop is rumored to have said: What does this change? From senders PoV it is a temporary error. The sender will retry. The point of greylisting and "NoListing" is to eliminate the spammers who do

Re: [mailop] Hotmail will start rejecting messages that fail DMARC

On 2023-03-23 at 16:18:24 UTC-0400 (Thu, 23 Mar 2023 15:18:24 -0500) Jarland Donnell via mailop is rumored to have said: I'd like to add a +1 to this for clarification, but in my case I'm focused solely on SRS. Will Hotmail reject DMARC failures based on From headers or envelope senders?

Re: [mailop] sender domain reputation

On 2023-03-22 at 15:44:10 UTC-0400 (Thu, 23 Mar 2023 03:44:10 +0800) fh--- via mailop is rumored to have said: May I know why you block PW TLD entirety? Not all of them are spams IMO. 100% of the messages arriving at the mail systems I manage claiming to be from a *.pw domain were spam,

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