SMTP: 599 EOF. Return to Sender.
Posted: Tue Apr 19, 2022 8:51 pm
Hello.
I am receiving this error last few months. Before that my Server ran smoothly last ~5 years without any problem.
I am able to receive emails fine, but I cannot send to outlook or gmail anymore.
When I hit send in Roundcube it gets stuck in Message Queue for some time, then Mail Delivery System sends me email saying:
"Mail delivery failed: returning message to sender"
I tried reinstalling Server OS. I even tried HestiaCP, but same result.
What could I be missing?
Thanks.
I am receiving this error last few months. Before that my Server ran smoothly last ~5 years without any problem.
I am able to receive emails fine, but I cannot send to outlook or gmail anymore.
When I hit send in Roundcube it gets stuck in Message Queue for some time, then Mail Delivery System sends me email saying:
"Mail delivery failed: returning message to sender"
This is outlook log:Reporting-MTA: dns; host.domain.tld
Action: failed
Final-Recipient: rfc822;[email protected]
Status: 5.0.0
Remote-MTA: dns; gmail-smtp-in.l.google.com
Diagnostic-Code: smtp; 599 EOF
This is gmail logs:2022-04-19 16:56:04 Start queue run: pid=2210
2022-04-19 16:56:04 1ngr64-0002H2-6y Message is frozen
2022-04-19 16:57:05 1ngqXD-0003lY-1o H=outlook-com.olc.protection.outlook.com [104.47.58.33]: SMTP error from remote mail server after pipelined end of data: 451 4.7.0 Timeout waiting for client input [DM6NAM10FT053.eop-nam10.prod.protection.outlook.com]
2022-04-19 16:58:06 1ngqXD-0003lY-1o H=outlook-com.olc.protection.outlook.com [104.47.55.33]: SMTP error from remote mail server after pipelined end of data: 451 4.7.0 Timeout waiting for client input [MW2NAM10FT025.eop-nam10.prod.protection.outlook.com]
2022-04-19 16:58:06 1ngqXD-0003lY-1o == [email protected] R=dnslookup T=remote_smtp defer (-46) H=outlook-com.olc.protection.outlook.com [104.47.55.33]: SMTP error from remote mail server after pipelined end of data: 451 4.7.0 Timeout waiting for client input [MW2NAM10FT025.eop-nam10.prod.protection.outlook.com]
2022-04-19 16:58:06 1ngs0n-0000AB-0S Message is frozen
EDIT: but work with yahoo mail.2022-04-19 17:08:07 1ngqyc-0001L3-4r ** [email protected] R=dnslookup T=remote_smtp H=gmail-smtp-in.l.google.com [74.125.195.27] X=TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 CV=no: SMTP error from remote mail server after pipelined end of data: 599 EOF
I tried reinstalling Server OS. I even tried HestiaCP, but same result.
What could I be missing?
Thanks.