Error deferred and timedout connection

[Zivalita]

Hello, can anyone help me to findout why we can't send email to any domains such as yahoo, hotmail, etc. And this is the error that we found from the server logs :


Apr 28 08:33:57 proxy01 postfix/smtp[72680]: connect to hotmail-com.olc.protection.outlook.com[40.93.192.3]:25: Connection timed out
Apr 28 08:33:52 proxy01 postfix/smtp[72679]: connect to mta5.am0.yahoodns.net[98.136.96.75]:25: Connection timed out
Apr 28 08:33:57 proxy01 postfix/smtp[72683]: connect to mta6.am0.yahoodns.net[67.195.204.73]:25: Connection timed out
Apr 28 08:29:22 proxy01 postfix/smtp[72506]: BFF083F01B: to=<muditams@yahoo.co.id>, relay=none, delay=7112, delays=7052/0.17/60/0, dsn=4.4.1, status=deferred (connect to mx-apac.mail.gm0.yahoodns.net[106.10.248.73]:25: Connection timed out)
Apr 28 08:30:01 proxy01 postfix/error[72499]: C438C405E5: to=<soewandiht@yahoo.com>, relay=none, delay=0.46, delays=0.4/0.01/0/0.04, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to mta6.am0.yahoodns.net[67.195.228.110]:25: Connection timed out)
Apr 28 08:30:06 proxy01 postfix/error[72501]: 760B3405E0: to=<cecilianitimuljo@yahoo.com>, relay=none, delay=0.21, delays=0.16/0.01/0/0.04, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to mta6.am0.yahoodns.net[67.195.228.110]:25: Connection timed out)
Apr 28 08:30:22 proxy01 postfix/smtp[72507]: 3BA5840588: to=<willianmeireles2015@outlook.com>, relay=none, delay=553, delays=432/0.22/120/0, dsn=4.4.1, status=deferred (connect to outlook-com.olc.protection.outlook.com[52.101.137.1]:25: Connection timed out)
Apr 28 08:32:10 proxy01 postfix/error[72630]: 00096405DD: to=<marizadoval@hotmail.com>, relay=none, delay=0.08, delays=0.05/0.01/0/0.01, dsn=4.4.1, status=deferred (delivery temporarily suspended: connect to hotmail-com.olc.protection.outlook.com[52.101.124.116]:25: Connection timed out)

and we've check the connection to yahoo, gmail, hotmail is running ok and connected :


telnet mta6.am0.yahoodns.net 25
Trying 98.136.96.75...
Connected to mta6.am0.yahoodns.net.
Escape character is '^]'.
220 mtaproxy106.free.mail.ne1.yahoo.com ESMTP ready

Does anyonw can help me to solve this issue ?

- Ziva

 

[Stoiko Ivanov]

Apr 28 08:33:57 proxy01 postfix/smtp[72680]: connect to hotmail-com.olc.protection.outlook.com[40.93.192.3]:25: Connection timed out
Apr 28 08:33:52 proxy01 postfix/smtp[72679]: connect to mta5.am0.yahoodns.net[98.136.96.75]:25: Connection timed out
Apr 28 08:33:57 proxy01 postfix/smtp[72683]: connect to mta6.am0.yahoodns.net[67.195.204.73]:25: Connection timed out

The logs would indicate that there was a network issue while trying to connect to those machines/IPs - try each of those ip's with netcat/telnet

are the mails still in the queue? - `mailq` or the GUI (Administration->Queues) should tell you.

 

[Onslow]

Hi, @Zivalita
Are the (successful) checks executed from the very same machine which gets connction timeouts?