Re: [mailop] Hotmail/Outlook feedback loop processing delay?

On Tue, 09 Jan 2018 20:59:04 +0200, Sotiris Tsimbonis said: > Hi all, > > I received today (9 Jan 2018) a message from outlook's feedback loop > with a message that was originally sent to a hotmail address on 30 Jan 2017. Just as a gentle reminder - sometimes the Date: is incorrect because the

Re: [mailop] Google groups dropping mail?

On Wed, 22 Nov 2017 11:28:08 +0100, Leo Gaspard said: > hours (between 10.200.48.129 and 10.55.109.198 if someone knows what > those IPs mean), and then for exactly 8 hours (between > mail-vk0-f56.google.com and and... itself?) before reaching my server. Sounds almost like two different

Re: [mailop] Hotmail and 4.5.1 4.7.500 Server Busy with some

On Thu, 09 Nov 2017 13:46:05 -0800, "Luis E. Muñoz via mailop" said: > On 9 Nov 2017, at 13:33, Charles McKean wrote: > > > Legal? Was that a threat? Do you have prior experience attacking a > > lunatic asylum with a banana? Best of luck. > > I suspect^Whope this is a language thing. Almost

Re: [mailop] Gmail forwarding blowback

On Wed, 08 Nov 2017 11:42:41 -0800, Michael Peddemors said: > Besides, you want to keep the customer, not make him a gmail customer ;) If the mail service is bundled with something else that's a profit center, unbundling the cost center part and handing that to Google will improve your bottom

Re: [mailop] SENDERSCORE

On Wed, 25 Oct 2017 12:50:16 -0600, "Anne P. Mitchell Esq." said: > Weirdly, every single email in this particular thread ended up in Gmail's > spam folder. Any good guesses as to why? My email is also hosted at GMail, but none of the thread ended up in my spam folder. So whatever it was, it

Re: [mailop] AOL Postmasters - Syntax replacement for http://postmaster.aol.com/faq/mailerfaq.html#syntax

On Tue, 24 Oct 2017 07:56:19 -0400, "Kevin A. McGrail" said: > Recently we were alerted to a valid address that did not meet the syntax. Are you able to tell us in what way it didn't meet the syntax, and how you confirmed it's valid anyhow? pgp8_pvw2dwEM.pgp Description: PGP signature

Re: [mailop] Slow botnet IMAP scans?

On Sat, 07 Oct 2017 01:30:27 +0200, Philip Paeps said: > On 2017-10-06 15:18:45 (-0700), Brandon Long via mailop wrote: > >It can also aid in using say geohop stats. Ie, one easy way to try to > >detect hijacking is to geoloc the accessing IP, and see how close it > >was to the last access, or

Re: [mailop] [RFC 2822] RFC Header Line Length..

On Thu, 10 Aug 2017 07:57:14 -0700, Michael Peddemors said: > Seeing more and more cases of this not being honoured.. > Surprised that there is not more breakage, but noticed that Yahoo's DKIM is > now one long line, in addition to Microsoft's VERY long header lines.. I wonder if this is the

Re: [mailop] self-signed cert for inbound TLS

On Wed, 26 Jul 2017 10:10:53 -0700, Brandon Long via mailop said: > Why can't smtp software being expected to maintain a list of trusted CAs? > Or at least run on an OS that is expected to do so. Quick: What two CAs did Google just remove from Chrome's list? Has your OS vendor followed suit?

Re: [mailop] User question about getting off blocklists

On Wed, 12 Jul 2017 12:10:21 -0500, "Scott Bonacker CPA" said: > The IP for abanet.org is (currently) listed on CASA and SORBS as a bad sender > What authority is required to make a request for removal from a block > list? Certainly not a user, but what level in the sending > organization? As a

Re: [mailop] btinternet.com blacklist

On Wed, 12 Jul 2017 00:46:28 -, Michael Wise via mailop said: > You’d be surprised how many people think that their sincerity is flagged in > the protocol somehow…. RFC3514 was written explicitly to add support for that. pgpzmD8obTwjW.pgp Description: PGP signature

Re: [mailop] So, about this iOS10 unsubscribe feature...

On Tue, 23 May 2017 09:29:34 -0400, Joey Rutledge said: > Do you guys have any samples of the invalid Unsubscribe headers? There is a > newish spec (RFC8058; https://tools.ietf.org/html/rfc8058) that I’ve seen > floating around and wondering if those are the headers screwing things up. That

Re: [mailop] SPF record

On Mon, 22 May 2017 14:42:20 -0700, W Kern said: > I am talking about the scenario where a third party sender WITH an -all > SPF record sends to my customer and then MY customer forwards it > elsewhere (gmail, hotmail). So you accept spam if it has a valid SPF? pgp1vLecxuz_9.pgp Description:

Re: [mailop] SPF record

On Mon, 22 May 2017 13:21:08 -0700, W Kern said: > On 5/22/2017 11:22 AM, valdis.kletni...@vt.edu wrote: > > not an SPF problem. > > Forwarding has worked just fine for 30 or so years, if not longer. The > > "problem" only happens if you insist on attaching SPF to it. > Except when it is a

Re: [mailop] SPF record

On Mon, 22 May 2017 10:59:21 -0700, Michael Peddemors said: > Some have pointed out on the list the problem with 'forwarding', however > that is a forwarding problem, and not an SPF problem. Forwarding has worked just fine for 30 or so years, if not longer. The "problem" only happens if you

Re: [mailop] Speaking of too many SPF, Many SPF failures lately

On Thu, 18 May 2017 08:53:37 -0700, "Luis E. Muñoz" said: > large ranges in the SPF validation. I suppose it would be plagued with > false positives, but if enough people did it, it would give some > priority to actually think about your SMTP flows when setting up your > SPF records. That

Re: [mailop] does Google use SAME outbound IPs for "G suite" as they do for gmail?

On Fri, 05 May 2017 14:50:54 -0700, Brandon Long via mailop said: > In reality, ESPs exist along a spectrum, both in their ability to keep > spammers out and their desire to. And "spammers" also exist along a > spectrum, from folks clearly knowing they are doing it to folks who don't > to

Re: [mailop] does Google use SAME outbound IPs for "G suite" as they do for gmail?

On Fri, 05 May 2017 10:48:46 -0400, Rob McEwen said: > Does Google use the SAME?... or DIFFERENT?... outbound IPs for "G suite" > (or any other customers who are using their own domain names) ...as they > do for @gmail.com addresses? Don't your own logs have enough info in them for that? See

Re: [mailop] Do we need a new list for reporting spam? (Was Re: Admin: This is not a place to report Spam. )

On Mon, 10 Apr 2017 12:21:45 -0600, Ryan Harris via mailop said: > It might be helpful to understand why people want to post on email forums > rather than an abuse desk. Is it to gain public attention on the matter? Is > there a bit of shaming going on and the reporter wants the community to >

Re: [mailop] conventional wisdom, was Google rejects a TLS connection

On 17 Mar 2017 15:47:50 +0100, "John R Levine" said: > I used to have my own credit card account and my card processor demanded > PCI compliance. About 1/4 of it was reasonable, 3/4 was cargo cult stuff > that mostly involved stuff like setting packet filters so they couldn't > probe ports that

Re: [mailop] Enforcement of RFCs [was: GoDaddy Email admins' in the house?]

On Wed, 15 Feb 2017 05:59:36 +, Phil Pennock said: > I believe Brandon's point is that this is a probe _of_ Gmail, not _by_ > Gmail, and the service purporting to be testing RFC conformance is > instead doing a very old-style message with no headers at all. Right. The test sends something

Re: [mailop] blocking mails/networks (was: Mails to microsoft)

On Mon, 13 Feb 2017 09:16:42 -0800, ml+mai...@esmtp.org said: > How would a user know that (s)he missed a mail? > > I sometimes send patches to various open source projects and if a > mail to the maintainer bounces due to some "anti-spam" measures, > then I take that as an indication that they

Re: [mailop] Enforcement of RFCs [was: GoDaddy Email admins' in the house?]

On Sun, 12 Feb 2017 07:52:25 -0500, Rich Kulawiec said: > On Wed, Jan 11, 2017 at 12:33:47PM -0800, Michael Peddemors wrote: > > More and more, if you want to deliver email in today's environments, you > > have to ensure your email servers are correctly configured. > > I think there's considerable

Re: [mailop] Odd spamcop glitch

On 23 Jan 2017 21:30:20 +, "John Levine" said: > That led to great merriment, since that's Blue State Digital and mail > from mainstream political groups went into spamtraps that tested the > URLs, some of which were "Click here to donate now with your preregistered > credit card!" Oops.

Re: [mailop] Mysterious DKIM failure.

On Mon, 12 Dec 2016 13:26:04 -0700, Luke Martinez via mailop said: > Whether or not you should ignore changes to whitespace and capitalization > seems like a fairly trivial thing. Not when you're talking about a cryptographic signature, where a single changed bit should change the signature

Re: [mailop] Anyone from Yahoo - icmpv6 filtering breaks login.yahoo.com MTU detection

On Sat, 19 Nov 2016 08:33:27 -0800, Carl Byington said: > Of the 220 sites identified above, 218 of them manage to see the icmpv6 > packet and respond by resending with a packet that makes it thru the > tunnel. I suspect that packets from at least one of those 218 sites goes > thru many of the

Re: [mailop] Anyone from Yahoo - icmpv6 filtering breaks login.yahoo.com MTU detection

On Fri, 18 Nov 2016 13:01:50 -0800, Carl Byington said: > response to that will be a bunch of full size packets from Yahoo with > the certificate, etc. The *far* end of my tunnel will be sending the > icmpv6 "packet too big" back to Yahoo. And you identified that the problem was at Yahoo, and

Re: [mailop] Anyone from Yahoo - icmpv6 filtering breaks login.yahoo.com MTU detection

On Fri, 18 Nov 2016 11:58:58 -0800, Carl Byington said: > If you have IPv6 connectivity thru a tunnel, with a smaller MTU, that > will fail. With a 1500 byte MTU, it works. The TCP handshake works - it > then hangs during the TLS handshake which sends full size packets. Did you do anything to

Re: [mailop] Microsoft Blacklisting IPs

On Thu, 17 Nov 2016 16:58:35 +0100, Hetzner Blacklist Support said: > our customers who use them on their own dedicated servers. They're the > ones having issues, since Microsoft has blacklisted large parts of our > network. That should be your big hint that you have a customer problem. (The

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

On Fri, 28 Oct 2016 11:09:27 +0200, Benoit Panizzon said: > > PS: Maybe I am not supposed to send multiline prompts if a server > > greets with HELO instead of EHLO? > > Note to self, next time read RFC before sending email... > > Old RFC 821 does not state, that a reply to HELO can be multiline.

Re: [mailop] 21cn.com connection reset before QUIT

On Thu, 20 Oct 2016 17:59:46 -0400, Mitchell Kuch said: > Filtering by either > the List-Id header contains "" > or > a Received header contains "for mailop@mailop.org" "D'Oh!" -- H. Simpson. Apparently, the last time I looked at this and gave up in disgust, List-Id: wasn't as common out in the

Re: [mailop] 21cn.com connection reset before QUIT

On Thu, 20 Oct 2016 15:57:24 -0400, Mitchell Kuch said: > inbox. Gmail discards what it considers to be duplicate messages. I > find this to be a frustrating behavior. And most of the time, that's not too bad - if somebody cross-posts to two lists that you're on, you'll get only one copy. And

Re: [mailop] Spamhaus and Spamcop Blacklisting

On Tue, 13 Sep 2016 14:23:20 +0100, Rupesh Gohil said: > Yes email marketer having those IPs. Is it really hard to come out from > Drop? - Email Marketer has 20 to 25 Spamtraps and these spamtraps has been > removed now. Removing the spamtraps won't fix the problem. Your Email Marketer needs to

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

On Fri, 02 Sep 2016 14:27:39 -0400, Jim Popovitch said: > On Fri, Sep 2, 2016 at 4:28 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). > I'd love to see "no auth