When Adaptive Server starts a session, the mail user is represented by the MailUserName and the MailPassword that you defined when you created the Adaptive Server login for Sybmail.
Call the xp_startmail extended stored procedure explicitly each time you start Adaptive Server.
You can override the previously mentioned login default by passing another user name and password to xp_startmail. You might want to do this if there are multiple profiles associated with Adaptive Server’s mailbox, and you want to use an alternative profile.
Arrange to start a mail session automatically when Adaptive Server starts up.
For automatic start-up of an Adaptive Server mail session for subsequent Adaptive Server sessions, set the start mail session configuration parameter to 1.
With the automatic start-up, you do not need to use xp_startmail to begin a mail session the next time that you start Adaptive Server.