Hi Andrew, But in your case you may have some differing "ip reputation" to account for. For me the only difference was the html layout. Nothing else was changed.
I have to say this was years ago. I generally do not spend so much time on a single message. Yours, David On 22 November 2017 at 17:03, Andrew Wingle <awin...@listrak.com> wrote: > Hi David, > > > > I can attest to the same issue and the replication of the issue. We have > found some scenarios where the same email will deliver to specific domain > on one IP and not of the other. I cannot say that we have seen a different > result by “cleaning” the HTML up. Seems that the blackholing has increased > significantly over the past few weeks if other metrics are indeed > indicative of this problem. > > > > e.g. > > This is for the same exact message. Nothing about the messages are > changed. Messages are DKIM signed and have SPF-passing. IPs are given to > show an example only. > > > > recipient domain sender IP result > > x...@hotmail.com 142.0.83.00 accepted and delivered > > a...@outlook.com 142.0.83.00 accepted but never found > (blackholed) > > > > recipient domain sender IP result > > x...@hotmail.com 142.0.83.01 accepted but never found > (blackholed) > > a...@outlook.com 142.0.83.01 accepted and delivered > > > > For the message that is received in the mailbox there is nothing unique > about the header results to give way to what may have happened to the other > recipient’s message. > > > > Regards, > > Andrew > > > > > > *ANDREW D. WINGLE* > > > > 717-625-7857 <(717)%20625-7857> direct > > ---------------------------- > > > > *From:* mailop [mailto:mailop-boun...@mailop.org] *On Behalf Of *David > Hofstee > *Sent:* Wednesday, November 22, 2017 10:40 AM > *To:* mailop <mailop@mailop.org> > *Subject:* Re: [mailop] Outlook says "mail accepted for delivery" but it > never shows up > > > > Hi Klaus, > > > > No, actually it was perfectly repeatable. We couldn't believe it either. > Since this was a notification email of the ESP application we really wanted > to know why it was dropped by Microsoft so we rinsed and repeated... > > > > > > > > David > > > > On 22 November 2017 at 10:42, Klaus Ethgen <klaus+mai...@ethgen.de> wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA512 > > Hi, > > Am Mi den 22. Nov 2017 um 10:21 schrieb David Hofstee: > > It certainly could also have to do with the html content formatting. I > have > > seen that a cleaner html layout suddenly allowed my email. > > Well, that is just a random coincident. I have even plain text mails > dropped by microsoft. > > Regards > Klaus > - -- > Klaus Ethgen http://www.ethgen.ch/ > pub 4096R/4E20AF1C 2011-05-16 Klaus Ethgen <kl...@ethgen.ch> > Fingerprint: 85D4 CA42 952C 949B 1753 62B3 79D0 B06F 4E20 AF1C > -----BEGIN PGP SIGNATURE----- > Comment: Charset: ISO-8859-1 > > iQGzBAEBCgAdFiEEMWF28vh4/UMJJLQEpnwKsYAZ9qwFAloVRoYACgkQpnwKsYAZ > 9qyEJQv8Ddn+dXzEI/ALtf1MGTu8DqavikaOiBo7fP4jhU9RFdmRRqTJ9nfPo9eU > LYcnHnk32KIkUJ//RgmhbzvQfLfmoI8gjLublMdiGUZvrsGIPbHDIrhSVzh0XMOe > wGl9gXK7Pqf8rh+EHBwKT14Lxf6do4PNGFiP8YDC8VNR2vjW0x3IOhEQmIE/NJgM > 6RaE5cDv8h5PPmNKwdLxw7v5N1ZHHSw1yuOHZ3fP5Ck6gRpqcqUk8MVoINPvidf9 > ugYDSUJgBSCgZ3Jv4WhZ/4YvwaGIWAPefDhfBsmCcyj5bqr/C3074rPHbmsenttJ > cXGTgRQT52vBGe0WQIf5rUmA1DEHDXyDwtQDKINUoE4VfoSDvyyIs049U4Nes7UY > SXRjKM8UdnHmK5cbeBqRHBRXehFsRWq0rJ6uVaChtA1XVnJGmUwv18YebNwgVllS > c/0w2bV5voPgTzpgWhA+xGnyud4ogSQ41zVMDT6MEZH7n/DeZQcKpZfZZ8YF6cmI > hnQH6fWj > =6qLG > -----END PGP SIGNATURE----- > > > _______________________________________________ > mailop mailing list > mailop@mailop.org > https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop > > > > > -- > > -- > > My opinion is mine. > -- -- My opinion is mine.
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