On 2024-08-10 at 15:36:11 UTC-0400 (Sat, 10 Aug 2024 21:36:11 +0200)
christian via Postfix-users <use...@schani.com>
is rumored to have said:
Hello, I'm currently having the problem that an email cannot be sent
to an Office 365 service from my Postfix.
I only get the following response:
Final-Recipient: rfc822; sen...@domain.com
Original-Recipient: rfc822;sen...@domain.com
Action: failed
Status: 5.4.1
Remote-MTA: dns; sender-domain.mail.protection.outlook.com
Diagnostic-Code: smtp; 550 5.4.1 Recipient address rejected: Access
denied.
[CH1PEPF0000AD7B.namprd04.prod.outlook.com 2024-08-10T11:05:28.177Z
08DCB5F2861FDE68]
I checked the sending email account and found no errors
(mxtoolbox,learndmarc.com). All SPF DKIM and DMARC entries are OK.
It's not an e-spam mail either. Of course the recipient is there and
the mailbox is active.
I googled everything and only found indications that some people have
the same problem. I read something about CodeTwo, but that doesn't
mean anything to me and I can't find a solution.
Is this a known problem? Is there a practical solution?
This is caused by a misconfiguration of the account or the entire domain
in MS365. It can only be fixed on the Microsoft side.
--
Bill Cole
b...@scconsult.com or billc...@apache.org
(AKA @grumpybozo@toad.social and many *@billmail.scconsult.com
addresses)
Not Currently Available For Hire
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