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-   -   sendmail 8.13.4-2 smtp auth nightmare (http://www.linuxquestions.org/questions/linux-security-4/sendmail-8-13-4-2-smtp-auth-nightmare-378187/)

kz26 10-29-2005 08:44 PM

sendmail 8.13.4-2 smtp auth nightmare
 
I am running FC4 with the sendmail version above.
Recently my ISP started requiring SMTP authentication on all outgoing mail.
I would have no problem with that - however sendmail doesn't seem to like my smtp auth configuration.

Here's what I did first:
1. I created a file called default-auth-info in my /etc/mail directory.
The contents of it are as follows:

Code:

AuthInfo:mail.my.isp "U:username" "P: :) " "M:LOGIN"
Then I did
Code:

makemap hash default-auth-info < default-auth-info
2. Next I made some changes to sendmail.mc.
I added the following:
Code:

FEATURE(`authinfo',`hash /etc/mail/default-auth-info')dnl
Then I uncommented these lines:
Code:

TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl
define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl

3. I then did a make on the mc file to get sendmail.cf.
4. I restarted the sendmail server.

Then I tried to send an email. It was NOT received.
I checked the log file.

Code:

Oct 29 21:27:13 localhost sendmail[13652]: j9TMDs8E010600: to=<me@somewhere.com>, ctladdr=<me@localhost.localdomain> (501/501), delay=03:13:19, xdelay=00:00:01, mailer=relay, pri=1200365, relay=mail.my.isp. [131.183.2.205], dsn=4.0.0, stat=Deferred: 454 5.7.3 Client does not have permission to Send As this sender.
What could be the problem? Could someone explain to me also the difference between U and I in the authinfo file?

Pete M 10-30-2005 01:57 PM

Option 2

http://www.linuxquestions.org/questi...hreadid=354488

Pete


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