Hello, I'm running OpenSMTPD 7.5.0p0 on Linux
And recently I'm started getting such errors for e-mails coming from outbound.protection.outlook.com servers. Jun 17 10:20:39 smtp01 smtpd[7838]: 33c0e6f7addb24d1 smtp connected address=40.107.127.99 host=mail-be0deu01on2099.outbound.protection.outlook.com Jun 17 10:20:39 smtp01 smtpd[7838]: 33c0e6f7addb24d1 smtp tls ciphers=TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256 Jun 17 10:20:41 smtp01 smtpd[7838]: 33c0e6f7addb24d1 smtp message msgid=44ab0cf5 size=10676 nrcpt=1 proto=ESMTP Jun 17 10:20:41 smtp01 smtpd[7838]: 33c0e6f7addb24d1 smtp envelope evpid=44ab0cf5941afbc4 from=<...@...> to=<...@...> Jun 17 10:20:42 smtp01 smtpd[7838]: 33c0e6f7addb24d1 smtp disconnected reason="io-error: write failed: Connection reset by peer" Is my understanding correct that "Connection reset by peer" means that remote host (outlook.com) closed/reset the connection? Is there a way to debug whats is going on in such situation? What could be the reason for such resets? Thank you, -- Saulius
publickey - s5sg5s@pm.me - 0x4CC45C14.asc
Description: application/pgp-keys
signature.asc
Description: OpenPGP digital signature