HP-UX Mailing Services Administrator's Guide (B2355-91064)

For hosts that resolve to IPC mailers, MX hosts are not reported when using verify mode,
because MX records are not collected until delivery is actually attempted.
If the address is not being resolved as you expect, you may have to modify one or more
of the following:
• The Sendmail configuration file
• The files or programs from which file classes are generated
• The name server configuration
• The UUCP configuration
More detailed information about how the configuration file is rewriting the recipient
addresses is provided by address test mode:
/usr/sbin/sendmail -bt
Verifying Message Delivery
You can observe Sendmail’s interaction with the delivery agents by delivering the
message in verbose mode, as in the following example:
/usr/sbin/sendmail -v [e-mail]
Sendmail is now ready for you to type a message. After the message, type a period (.)
on an empty line to denote the end of the message, as in the following example:
This is only a test.
.
Sendmail responds with the following information:
[e-mail]... Connecting to sys1.hp.com via esmtp...
220 sys1.baby.com ESMTP Sendmail 8.8.6 (PHNE_12345)/8.8.6 SMKit7.02;
Wed, 23 Oct 2002 18:44:21 +0530 (IST)
250-sys1.baby.com Hello [e-mail] [15.70.178.1940,
pleased to meet you
>>MAIL From:<[e-mail]> SIZE=21
250 <[e-mail]>... Sender ok
>> RCPT To:<[e-mail]>
250 <[e-mail]>
>>DATA
354 Enter mail, end with “.” on a line by itself
>>>.
250 SAA24294 Message accepted for delivery
[e-mail]... Sent (SAA24294 Message accepted for delivery)
Closing connection to sys1.baby.com
QUIT
221 sys1.baby.com closing connection.
Troubleshooting Sendmail 93