What is an SMTP server?
An SMTP server is a computer that receives outgoing mail messages from
users and routes them to their intended recipients. All
SMTP servers implement some version of the Simple Mail
Transport Protocol, and many that run Unix use the
sendmail program. Messages often must pass through
several servers to reach their destinations, and SMTP facilitates
The SMTP server address for all Indiana University campuses except IPFW (which has its own SMTP servers), is:mail-relay.iu.edu
Last modified on March 01, 2010.