Hi Anyone at Microsoft able to look at this issue?
Despite the fact, that we now block each of our customer which is sending email to Microsoft customers who 'mistakenly' confuse 'junk' and 'trash' we got hit by S3150 again. Opened a case with Microsoft got the usual email from [email protected] to which we have reply to to have microsoft look at the issue. But this time: ----- 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] Mit freundlichen Grüssen -Benoît Panizzon- -- I m p r o W a r e A G - Leiter Commerce Kunden ______________________________________________________ Zurlindenstrasse 29 Tel +41 61 826 93 00 CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web http://www.imp.ch ______________________________________________________ _______________________________________________ mailop mailing list [email protected] https://list.mailop.org/listinfo/mailop
