a server that i don't have shell access to atm has, today, started seeing undelivered mail from only one domain -- *outbound.protection.outlook.com. apparently, everything else inbound is flowing. and, i'm told, inbound from outlook.com was working yesterday.
all i've got so far is this log snip sent from the admin: 2023-05-02T08:23:10.490862-04:00 karma postfix/postscreen[17882]: CONNECT from [40.107.220.41]:40449 to [xx.xx.xx.xx]:25 2023-05-02T08:23:10.554083-04:00 karma postfix/dnsblog[17878]: addr 40.107.220.41 listed by domain list.dnswl.org as 127.0.0.255 2023-05-02T08:23:16.577189-04:00 karma postfix/postscreen[17882]: PASS NEW [40.107.220.41]:40449 2023-05-02T08:23:16.757030-04:00 karma postfix/ps-int/smtpd[17881]: connect from mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41] 2023-05-02T08:23:16.895010-04:00 karma postfix/ps-int/smtpd[17881]: setting up TLS connection from mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41] 2023-05-02T08:23:16.895219-04:00 karma postfix/ps-int/smtpd[17881]: mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: TLS cipher list "aNULL:-aNULL:HIGH:MEDIUM:!SEED:!IDEA:!3DES:!RC2:!RC4:!RC5:!kDH:!kECDH:!aDSS:!MD5:+RC4:@STRENGTH:!aNULL" 2023-05-02T08:23:16.895448-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:before SSL initialization 2023-05-02T08:23:16.967083-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:before SSL initialization 2023-05-02T08:23:16.967268-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read client hello 2023-05-02T08:23:16.967314-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write server hello 2023-05-02T08:23:16.967344-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write certificate 2023-05-02T08:23:16.970507-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write key exchange 2023-05-02T08:23:16.970716-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write certificate request 2023-05-02T08:23:16.970861-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write server done 2023-05-02T08:23:17.151918-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write server done 2023-05-02T08:23:17.152832-04:00 karma postfix/ps-int/smtpd[17881]: mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: depth=1 verify=0 subject=/C=US/O=DigiCert Inc/CN=DigiCert Cloud Services CA-1 2023-05-02T08:23:17.152961-04:00 karma postfix/ps-int/smtpd[17881]: mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: depth=0 verify=1 subject=/C=US/ST=Washington/L=Redmond/O=Microsoft Corporation/CN=mail.protection.outlook.com 2023-05-02T08:23:17.153066-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read client certificate 2023-05-02T08:23:17.154966-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read client key exchange 2023-05-02T08:23:17.155037-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read certificate verify 2023-05-02T08:23:17.155087-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read change cipher spec 2023-05-02T08:23:17.155118-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS read finished 2023-05-02T08:23:17.155296-04:00 karma postfix/ps-int/smtpd[17881]: mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: Issuing session ticket, key expiration: 1683035140 2023-05-02T08:23:17.155338-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write session ticket 2023-05-02T08:23:17.155367-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write change cipher spec 2023-05-02T08:23:17.155430-04:00 karma postfix/ps-int/smtpd[17881]: SSL_accept:SSLv3/TLS write finished 2023-05-02T08:23:17.155459-04:00 karma postfix/ps-int/smtpd[17881]: subject=/C=US/ST=Washington/L=Redmond/O=Microsoft Corporation/CN=mail.protection.outlook.com 2023-05-02T08:23:17.155485-04:00 karma postfix/ps-int/smtpd[17881]: issuer=/C=US/O=DigiCert Inc/CN=DigiCert Cloud Services CA-1 2023-05-02T08:23:17.155509-04:00 karma postfix/ps-int/smtpd[17881]: mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: subject_CN=mail.protection.outlook.com, issuer=DigiCert Cloud Services CA-1, fingerprint=1D:51:F5:25:8A:3E:F1:B8:65:1A:8D:D1:4A:5D:9D:16:B5:00:25:8A, pkey_fingerprint=52:BD:30:C7:65:7B:52:B0:B1:6C:7A:A5:97:3F:F7:EF:48:C2:A0:61 2023-05-02T08:23:17.155534-04:00 karma postfix/ps-int/smtpd[17881]: Untrusted TLS connection established from mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41]: TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits) 2023-05-02T08:23:17.225393-04:00 karma postfix/ps-int/smtpd[17881]: disconnect from mail-co1nam11on2041.outbound.protection.outlook.com[40.107.220.41] ehlo=1 starttls=1 quit=1 commands=3 it appears that connection's made, then simply disconnected, without queueing. i don't recognize the problem, if it's even in there^^; i'm staring at that "verify=1" wondering if there's a fail ... is there a reason for non-delivery in this log? if not, i'll need to get in front of that server to do usual troubleshooting directly. _______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
