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Receiving emails with sendmail, masquerade problem

Receiving emails with sendmail, masquerade problem

Receiving emails with sendmail, masquerade problem

Hi everybody.

Working with Linux CentOs 5.10 and Sendmail 8.13.8

I'm new with Sendmail, I suppose my question is a stupid question, but it is.

My problem is a masquerade problem.

When the user jhon, from the server http://serv01.mydomain.com send a email like jhon@serv01.mydomain.com, Sendmail change the @serv01.mydomain.com to @mydomain.com, so this part, outgoing mails, work good.

The problem is when I send a email to jhon@mydomain.com, in this case I loose the email, I know that sendmail received it, manage and so on, I see this in maillog, but I don't know more about this mail.

But when I send mail to jhon@serv01.mydomain.com, all work good and perfect. Jhon receives his email and can access it through Usermin.

Can anyone help me with this?

Regards. Jose Benitez.

RE: Receiving emails with sendmail, masquerade problem

I see that this was posted quite a while back, but just in case...

What error do you see in your log file - /var/log/maillog?

If you see a line that ends in something similar to:
stat=Service unavailable

You'll need to edit your sendmail.mc file and make sure you have an entry similar to:

If you do not, then add it - change mydomain.com to something relevant to you.

Run the m4 macro to create the sendmail.cf file:
m4 sendmail.mc > sendmail.cf

Restart sendmail:
service sendmail restart

Hopefully that resolves it for you...


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