Hi All

Version: IMail 8.15

I have seen A LOT of emails being return due to fail connections.  When we 
check on the MX records of the receipients the record IP is different to the MX.

For example - the log shows the IP address for the site and not the MX record 
IP address resulting in failure - 

03:10 10:42 SMTP-(0000000000000000) Info - Adding Queue file 
E:\IMail\spool\QHE48d4000005b8d7d5.VAC 
03:10 10:42 SMTP-(48d4000005b8d7d5) processing 
E:\IMail\spool\QHE48d4000005b8d7d5.VAC
03:10 10:42 POP3D  (00000df0) logoff for djohnson R:1, D:3, P:0, RS:4858
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] Connecting socket to service <DNS> on 
host <63.175.158.253> using protocol <tcp>
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] using source IP for mail.gemradio.com 
[192.168.1.5]
03:10 10:42 SMTP-(48d4000005b8d7d5) Connect 63.175.158.253 [63.175.158.253:53] 
(0)
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] looking up AIG.com by stack
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] looking up AIG.com by stack
03:10 10:42 SMTP-(48d4000005b8d7d5) closed 
E:\IMail\spool\_HE48d4000005b8d7d5.~AC - 1
03:10 10:42 POP3D  (00000C8C) logon success for David.Johnson mail.gemradio.com 
from 10.110.15.8
03:10 10:42 POP3D  (00000c8c) logoff for David.Johnson R:0, D:0, P:0, RS:0
03:10 10:42 SMTP-(48d4000005b8d7d5) R<[EMAIL PROTECTED]> - 1
03:10 10:42 SMTP-(48d4000005b8d7d5) R<[EMAIL PROTECTED]> - 1
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] doing direct send AIG.com
03:10 10:42 SMTP-(48d4000005b8d7d5) Trying AIG.com (0)
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] Connecting socket to service <SMTP> on 
host <AIG.com> using protocol <tcp>
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] using source IP for mail.gemradio.com 
[192.168.1.5]
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] Connecting socket to service <DNS> on 
host <63.175.158.253> using protocol <tcp>
03:10 10:42 SMTP-(48d4000005b8d7d5) [x] using source IP for mail.gemradio.com 
[192.168.1.5]
03:10 10:42 SMTP-(48d4000005b8d7d5) Connect 63.175.158.253 [63.175.158.253:53] 
(0)
03:10 10:42 SMTP-(48d4000005b8d7d5) Connect AIG.com [167.230.22.20:25] (2)
03:10 10:42 SMTP-(4807004d00d09d70) ldeliver mail.gemradio.com 
Ryan.wallace-main (1) [EMAIL PROTECTED] 1300431
03:10 10:42 SMTP-(4807004d00d09d70) finished 
E:\IMail\spool\Q4807004d00d09d70.SMD status=1
03:10 10:42 SMTPD(48d8004e00d09d7d) [192.168.1.5] connect 201.228.136.24 port 
1689
03:10 10:42 SMTPD(48d8004e00d09d7d) [201.228.136.24] HELO servidor
03:10 10:42 SMTPD(48d8004e00d09d7d) [201.228.136.24] MAIL FROM:<[EMAIL 
PROTECTED]>
03:10 10:42 SMTPD(48d8004e00d09d7d) [201.228.136.24] RCPT TO:<[EMAIL PROTECTED]>
03:10 10:42 SMTPD(48d900a900d69d7e) [192.168.1.5] connect 88.84.200.97 port 1855
03:10 10:42 SMTPD(48d8004e00d09d7d) [201.228.136.24] 
E:\IMail\spool\D48d8004e00d09d7d.SMD 1270
03:10 10:42 SMTPD(48d8004e00d09d7d) performing antispam checks
03:10 10:42 SMTPD(48d900a900d69d7e) [88.84.200.97] EHLO [88.84.200.97]
03:10 10:42 SMTPD(48d900a900d69d7e) [88.84.200.97] MAIL FROM:<[EMAIL PROTECTED]>
03:10 10:42 SMTPD(48d900a900d69d7e) [88.84.200.97] RCPT TO: <[EMAIL PROTECTED]>
03:10 10:42 SMTP-(48d4000005b8d7d5) 421 SMTP service not available, closing 
transmission channel
03:10 10:42 SMTP-(48d4000005b8d7d5) SMTP_DELIV_FAILED
03:10 10:42 SMTP-(48d4000005b8d7d5) >QUIT
03:10 10:42 SMTP-(48d4000005b8d7d5) 
03:10 10:42 SMTP-(48d4000005b8d7d5) [u] closing socket (u)
03:10 10:42 SMTP-(48d4000005b8d7d5) R<[EMAIL PROTECTED]> - 4
03:10 10:42 SMTP-(48d4000005b8d7d5) R<[EMAIL PROTECTED]> - 4
03:10 10:42 SMTP-(48d4000005b8d7d5) requeuing 
E:\IMail\spool\QHE48d4000005b8d7d5.VAC R0 T1
03:10 10:42 SMTP-(48d4000005b8d7d5) finished 
E:\IMail\spool\QHE48d4000005b8d7d5.VAC status=3

We receive mail ok - I guess.

My question is how does the SMTP work what does it check for the MX or IP of 
the domain?  I know it would use a DNS server to resolve addresses but what 
does it ask for?  Are we missing something?

Comments/recommendations...

David Johnson

Reply via email to