login name format
I'm in troubles with messaging, I use Sendmail, and it's running on a RH 7.1.
Some messages are sent by users internally to may domain users but they don't receive the message, and worst, the sender doen't receive bounce message...
I am using "name.lastname" format in my user accounts, as you can see, there is a "dot" between name and last name and somebody told me that it could be one reason for my messaging problems. I have changed these forma, now I have a without dot login name format and alias within dot.
My question is, what about a "dot" in login name accounts??
I appriciate all your comments.
I set Sendmail up a while (long) ago, so I dont remember much.
Here's what you can do:
run Sendmail in debug mode (/usr/sbin/sendmail -bt)
then enter "97 first.last"
Rule 97 is will resolve an address into the MTA that will be used to send your mail. If it does, (I hope), then first.last will go through. Otherwise, the rule will filter out bogus addresses.
Try that first to see how it responds. There are many other rules that an email address has to go through. You will need to examine them if you insist on using first.last. There may be a rule that think that this format is bogus and thus filters it.
I have a firewall set up, so I can put rules to examine SMTP traffic and can see if the mail gets through. You can try tcpdump or other. I don't know to use any other except that firewall.
Hope it helps.
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