Office365 Trial Accounts are easily created.
But I was primarily suggesting a test against the infra to see if the mail was bounced or accepted. If accepted, it WOULD be delivered either to the INBOX or Junk. And if bounced, that should also highlight why. Our internal DNSBLs are not queriable via DNS. Aloha, Michael. -- Michael J Wise Microsoft Corporation| Spam Analysis "Your Spam Specimen Has Been Processed." Open a ticket for Hotmail<http://go.microsoft.com/fwlink/?LinkID=614866> ? -----Original Message----- From: mailop <mailop-boun...@mailop.org> On Behalf Of Florian Effenberger via mailop Sent: Wednesday, June 2, 2021 1:36 PM To: mailop@mailop.org Subject: Re: [mailop] [EXTERNAL] Re: protection.outlook.com refusing to accept mail with misleading temp error message Hi Michael, Am 2021-06-02 21:09, schrieb Michael Wise via mailop: > Sending from that IP is ... how one usually tests that it's working. what IMHO would be much better to check newly assigned IPs is, if there's a way to query via DNS, or a web form. That way the issue can be solved and clarified in advance, and not only when problems occur. Not everyone has an account at hand to test it upfront. Florian _______________________________________________ mailop mailing list mailop@mailop.org<mailto:mailop@mailop.org> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Flist.mailop.org%2Flistinfo%2Fmailop&data=04%7C01%7Cmichael.wise%40microsoft.com%7Cd2b743d92a604b83c58b08d926066b02%7C72f988bf86f141af91ab2d7cd011db47%7C0%7C0%7C637582631281183084%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=0sNDtESk94BWWxZArXhdbpVcO3cQY6sDPmf5JLe%2BfbM%3D&reserved=0
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