That's great to hear Grant! We had no contact from Microsoft for a few days and all of a sudden the issue disappeared, but nobody took credit.
I tried to follow up through the tickets that we had, but we were not able to find anyone who would say they did anything, and basically said the issue at our end must of cleared (they really were not understanding the problem). Honestly I forgot to continue following up so I never really had a solution, just a resolution. Thanks for updating with the steps, hopefully it never happens again (haha) but at least we have a way to potentially resolve it if it does! Cheers, [image: Nexigen Digital logo] Bradley Silverman *Head of Infrastructure* m: +61 418 641 103 <+61418641103> On Wed, 10 Jan 2024 at 23:08, Grant Gordon <[email protected]> wrote: > Hi All, > > We finally got this resolved on our side. From the tech that eventually > managed to get it sorted: > As for the correct process, annoyingly this is only possible internally, > there's no customer facing portal where you are able to request domain > delisting in this way. If this does come up for you in the future, just > raise a new ticket with us and let the assigned agent know they need to > raise an escalation with the antispam team and attach headers from emails > where the domain is blocked. Once I got in contact with the correct team, > they were able to resolve the issue within a few days, so it should be a > quick process if the agent knows who to contact from the start. > > This was to [email protected] > > I'm not sure why it took so long for a tech to raise it with the antispam > team, but hopefully if it crops up for anyone else, this will help point > the microsoft tech in the right direction. > > On 2023/12/01 05:47, Angelo Giuffrida via mailop wrote: > > Hi all, > > Apologies for the duplicate post (a colleague of mine attempted to send it > but I think it's been held for moderation as he's a new user). > > Wondering if anybody on the list is from Microsoft or can assist in > raising somebody at Microsoft to help with a strange delivery issue we are > facing sending email to Outlook users. > > We are a web hosting company that has 10s of thousands of domains, spread > across a few hundred servers emailing out through an outgoing email > cluster. The cluster has multiple nodes and IPs. > > The servers sitting behind the outgoing email cluster (the 800 servers or > so) all have hostnames ending in either domain1.com or domain2.com (not > the actual domains). When a customer sends emails however, they use their > own domain (user.com), so the only reference to the server is in the > email header, however SPF/DKIM etc are all based on the customers domain ( > user.com). > > We noticed after many complaints that all emails being sent from servers > ending in domain2.com are getting scored by Outlook as SCL:9, regardless > of email content, and has been for over a week now. We believe it's the > server hostname that is appearing in the headers, as we migrated a > customer's account (user.com) from a domain2.com server to a domain1.com > server and then sent the EXACT same email and it gets a SCL:1 score - it's > also worth noting that it used the identical outgoing email MTA and the > same sending IP from the mail that was being scored SCL:9. > > We have reproduced this many times across multiple examples and can > confirm that all domains and emails being sent from a domain2.com server > are getting SCL:9, but the same email sent from the same sender email > address (but using filtering nodes that have the domain1.com domain) are > not getting flagged and getting scored SCL:1. > > We are quite positive that these nodes are not sending spam, and have done > extensive investigations, SNDS is also showing no issues with our IPs. > > Further, since the MTA connecting to Outlook is the same for both groups > of servers, we are relatively sure that it is not based on those IPs - but > something to do with the server hostname itself. > > We have tried repeatedly to get in contact with Microsoft, but they come > back with ..... less than useful responses. This has happened to us in the > past many years ago, and the only fix was for Microsoft to remove the > punishment on the domain that was there for some reason. > > If anybody can assist that would be greatly appreciated. > > Cheers, > > Angelo Giuffrida > +61 421 221 585 > Director, Nexigen Digital > > _______________________________________________ > mailop mailing [email protected]https://list.mailop.org/listinfo/mailop > >
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