Quote:
however there is a problem which one recipient (lets say
hick@jimbob.com) is not getting the emails.
Do sendmail tries to *send* it? You should be able to check that on the /var/log/mail* (last resort tcpdump -i if -n port 25 on the server or the equivalent snoop)
Do others users on the jimbob.com get their email?
Quote:
Something to note, when I tried pinging jimbob.com (domain used in the
How did you ping it? ping jimbob.com ? It might not be the correct ip.
When an MTA tries to send an email, it asks for the MX dns record.
It usually points to smtp||mail.domain.tld, but could be any other name/address
Try something like
dig domain.tld MX
to ask for the MaileXchanger.
For instance:
seba@asterix:~$ dig google.com MX
;; QUESTION SECTION:
;google.com. IN MX
;; ANSWER SECTION:
google.com. 900 IN MX 10 smtp1.google.com.
google.com. 900 IN MX 10 smtp2.google.com.
google.com. 900 IN MX 10 smtp3.google.com.
google.com. 900 IN MX 10 google.com.s9a1.psmtp.com.
google.com. 900 IN MX 100 google.com.s9a2.psmtp.com.
;; AUTHORITY SECTION:
google.com. 172800 IN NS ns4.google.com.
google.com. 172800 IN NS ns1.google.com.
google.com. 172800 IN NS ns2.google.com.
google.com. 172800 IN NS ns3.google.com.
;; ADDITIONAL SECTION:
smtp1.google.com. 3600 IN A 74.125.45.25
smtp2.google.com. 3600 IN A 74.125.65.25
smtp3.google.com. 3600 IN A 209.85.137.25
This tells us that if you
seba@asterix:~$ telnet smtp1.google.com. 25
Trying 74.125.45.25...
Connected to smtp1.google.com.
Escape character is '^]'.
help220 smtp.google.com ESMTP
214-2.0.0 This is sendmail version 8.13.8
214-2.0.0 Topics:
214-2.0.0 HELO EHLO MAIL RCPT DATA
214-2.0.0 RSET NOOP QUIT HELP VRFY
214-2.0.0 EXPN VERB ETRN DSN AUTH
214-2.0.0 STARTTLS
214-2.0.0 For more info use "HELP <topic>".
214-2.0.0 To report bugs in the implementation see
214-2.0.0
Contact Us - Support - sendmail.org
214-2.0.0 For local information send email to Postmaster at your site.
214 2.0.0 End of HELP info
help
So, the server is able to communicate with the domain.tld MX
email address) it does not give any results. However the internet browser is able to open the website of jimbob.com, and outlook is able to successfully send to
hick@jimbob.com.
Quote:
Which makes me think this is down to a problem within sendmail. Anyone idea's on how to diagnose this issue?
Appreciate any helpful replies.
If you can connect to the destination MX, then you would like to check the logs. A lot of wisedom is hidden there
Regards
Sebastian