Mail Routing

[U.SivaKumar_2]

Hi ,

Assume I have two servers A and B hosting email service with sendmail for same domain xyz.com. I have 50 users in server A and 50 users in Server B. All users will have sender address in this format - user_name@xyz.com

user in server A should able to send mail to other users in server A and also server B. How to do mail routing without using LDAP ?.

regards,

U.SivaKumar.

[James Specht]

We have a similiar setup here. I have 12 servers holding my users actual email accounts. All users are known as user_name@abc.edu. What I have done is in our primary mail server for the domain I have an alias file that points all individuals to the correct server. So jim@abc.edu is aliased to jim@serverA.abc.edu and joe@abc.edu is aliased to joen@serverB.abc.edu. This alias file is then cloned to all the other email servers so everyone is in sync and can deliver their own mail internally.

--Jim

[Steven E. Protter]

/etc/aliases

On all the systems

user_name@xyz.com: user_name@servername.xyz.com


The file is tab delimited.

That change will start working as soon as you implement it, though its always a good idea to bounce the sendmail daaemon with a service sendmail restart

I like James's idea. I may modify it to provide failover mail queing between my three domain servers.

SEP

[Stuart Browne]

If you have some predictable pattern to the users on the given systems, you could use the 'virtual user table' to redirect them easier (for groupings) than the aliases file.