Benoit Panizzon via mailop skrev den 2026-06-22 11:29:
----- Transcript of session follows -----
... while talking to sponaeop.mail.protection.outlook.com.:
DATA
<<< 550 5.7.64 TenantAttribution; Relay Access Denied [ValidationStatus
of '' is EmptyCertificate] [CO1PEPF00012E63.namprd05.prod.outlook.com
2026-06-22T09:24:17.324Z 08DECEF6BD7417C8]
550 5.1.1 <[email protected]>... User unknown
<<< 503 5.5.2 Need rcpt command
[CO1PEPF00012E63.namprd05.prod.outlook.com 2026-06-22T09:24:17.324Z
08DECEF6BD7417C8]
# sendmail -bv [email protected]
This is the mail system at host localhost.
Enclosed is the mail delivery report that you requested.
The mail system
<[email protected]>: delivery via
sponaeop.mail.protection.outlook.com[52.101.40.1]:25: host
sponaeop.mail.protection.outlook.com[52.101.40.1] said: 550 5.7.64
TenantAttribution; Relay Access Denied [ValidationStatus of '' is
EmptyCertificate] [CY4PEPF0000E9D1.namprd03.prod.outlook.com
2026-06-22T10:07:57.463Z 08DECECAA8941306] (in reply to RCPT TO
command)
i read it as internal tls problem
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