sending mails failed to particular mail domain

venkatesh.alg · 09-18-2013, 11:32 AM

I am sending mails from shell scripts and Php scripts from my server, when i mentioned some domains (@gmail.com, @yahoo.com etc...) in recipient address mails sending successful, but when sending mails to my company mail server sending mails failed. All domains getting mails except my company domain. Previously it's working, we getting mails to my comapny mail domains upto August-2013, after that we are not getting mails. My comany mail domain maintained by godaddy. May be smtp relay creating problem, when i try to ping to smtp.asia.secureserver.net it's not responding, smtpout.asia.secureserver.net is pinging successfully.
when i sending mails it's trying to connect relay smtp.asia.secureserver.net

Please see the logs, and suggest me where is the problem.

mail log:

Sep 17 11:46:55 SEBOSPLAPP001 sendmail[9226]: r8H6G9Gs009224: to=<venkateswarlu.g@studyebuddy.com>, ctladdr=<venky@SEBOSPLAPP001.atit.com> (501/501), delay=00:00:46, xdelay=00:00:46, mailer=esmtp, pri=120503, relay=smtp.asia.secureserver.net. [182.50.144.66], dsn=5.0.0, stat=Service unavailable
Sep 17 11:46:55 SEBOSPLAPP001 sendmail[9226]: r8H6G9Gs009224: r8H6GtGs009226: DSN: Service unavailable

Return mail:
Reporting-MTA: dns; SEBOSPLAPP001.atit.com
Received-From-MTA: DNS; localhost.localdomain
Arrival-Date: Tue, 17 Sep 2013 13:39:18 +0530

Final-Recipient: RFC822; venkateswarlu.g@studyebuddy.com
Action: failed
Status: 5.1.0
Diagnostic-Code: SMTP; 550 5.1.0 <venky@sebosplapp001.atit.com> Sender rejected. IB506
Last-Attempt-Date: Tue, 17 Sep 2013 13:40:03 +0530

markotitel · 09-18-2013, 11:41 AM

Can you access your company mail server? It looks like it is inaccessibile. Chekout on which ports your company mail server listens and then come back here.

venkatesh.alg · 09-18-2013, 12:11 PM

yes my company mail server accessible, we sending and receiving mails from other domains also we configured in mail clients like outlook and thunderbird working fine, but when i configured mail clients it's defaulty takes smtp.asia.secureserver.net for outgoing mails then outgoing mails failed, i configured manually to smtpout.asia.secureserver.net in outgoing settings it's working.

markotitel · 09-19-2013, 08:29 AM

Service unavailable usualy means that server is DOWN, is smtp.asia.secureserver.net accesibile?

venkatesh.alg · 09-19-2013, 10:43 AM

when i try to ping smtp.asia.secureserver.net not accessible. but mails are working from mail clients. when i try to send from linux server then mails bouncing back. previously working fine. since 1 month on wards not working. is there any smtp relay problem? (smtpout.asia.secureserver.net is pinging)

venkatesh.alg · 09-20-2013, 12:30 PM

anyone tell me where is the problem, is it in recipient side or sender side?

markotitel · 09-21-2013, 05:43 AM

Most probably sender side. Check this out http://karim-ouda.blogspot.com/2012/...ail-linux.html

Ofcorse found on google. search keyword DSN: Service unavailable.

venkatesh.alg · 09-22-2013, 07:26 AM

Sender side problem means, i unable to send mails to any domain, but here i sending to all domains except @studyebuddy.com domain.