DNS server error
 

Hi all,

I'm getting below error while i'm sending html releated mails. ( testserver [10.10.1.11] did not issue)


Mar 29 22:56:00 testserver sendmail[9662]: t2TGu0Gg009662: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Mar 29 22:59:20 testserver sendmail[9686]: t2TGxK40009686: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Mar 29 22:59:20 testserver sendmail[9687]: t2TGxK7q009687: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Mar 29 22:59:21 testserver sendmail[9689]: t2TGxKYb009689: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Mar 29 23:00:16 testserver sendmail[9709]: t2TH0Grx009709: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Mar 29 23:00:18 testserver sendmail[9712]: t2TH0HXV009712: from=<bhaskara.rao@demo.com>, size=5972, class=0, nrcpts=1, msgid=<2368193.1427648418501.JavaMail.applakg1@demo.com>, proto=ESMTP, daemon=MTA, relay=testserver [10.10.1.11]
Mar 29 23:00:18 testserver sendmail[9712]: t2TH0HXW009712: from=<bhaskara.rao@demo.com>, size=9433, class=0, nrcpts=1, msgid=<21078311.1427648418778.JavaMail.applakg1@demo.com>, proto=ESMTP, daemon=MTA, relay=testserver [10.10.1.11]
Mar 29 23:00:19 testserver sendmail[9717]: t2TH0HXV009712: to=<safat@demo.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=125972, relay=mail1.demo.com. [10.10.70.80], dsn=5.0.0, stat=Service unavailable
Mar 29 23:00:19 testserver sendmail[9719]: t2TH0HXW009712: to=<safat@demo.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=129433, relay=mail1.demo.com. [10.10.70.80], dsn=5.0.0, stat=Service unavailable
Mar 29 23:00:19 testserver sendmail[9717]: t2TH0HXV009712: t2TH0JXV009717: DSN: Service unavailable
Mar 29 23:00:19 testserver sendmail[9719]: t2TH0HXW009712: t2TH0JXV009719: DSN: Service unavailable
Mar 29 23:00:20 testserver sendmail[9719]: t2TH0JXV009719: to=<bhaskara.rao@demo.com>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=40670, relay=mail1.demo.com. [10.10.70.80], dsn=2.0.0, stat=Sent (Ok, message saved <Message-ID: <201503291700.t2TH0JXV009719@'demo.com'>>)
Mar 29 23:00:21 testserver sendmail[9717]: t2TH0JXV009717: to=<bhaskara.rao@demo.com>, delay=00:00:02, xdelay=00:00:02, mailer=esmtp, pri=37209, relay=mail1.demo.com. [10.10.70.80], dsn=2.0.0, stat=Sent (Ok, message saved <Message-ID: <201503291700.t2TH0JXV009717@'demo.com'>>)
Mar 29 23:00:28 testserver sendmail[9725]: t2TH0Sgu009725: testserver [10.10.1.11] did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA

That's a DSN (service) error being returned by the target mail server, nothing to do with DNS.

This is only happening when you send as MIME type HTML. What happends if you send as plain text?


Also what happens when you telnet into 10.10.1.11 port 25 Does the mail server answer?