Sendmail not authenticating users
Can connect to our mail server using telnet onto port 25 and this works correctly, 'ehlo whatever' shows output as expected.
However using a mail client to connect it gives an authentication error and the following appears in the maillog file;
did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA
Can you give me and tips on what to look for in the config, this works correctly on our development box but not on our production server. Could it be another program is interfering with the connection?
Sendmail is running in standalone mode not through the xinetd daemon.
Sorry I forgot to state I am using the PLAIN AUTH method as to try and avoid getting more errors.
Last edited by manutdfan1988; 01-24-2011 at 04:04 AM.