I am using Outlook 2003 and have multiple email accounts. Most accounts are at the same hosting company but are on different servers.

It appears that Outlook chooses a random account/smtp server to send all outgoing email. This is wreaking havoc with my SPF setup.

Example:

A - smtp server=smtp1.yyy.com
B - smtp server=smtp1.zzz.com

A is the default email account in outlook. When I send an email from A it often gets sent through B's smtp server. Thus showing up as "Not Verified" based on the SPF record.

What I want to do is to make email from A go through A's smtp server and B's email to go through its smtp server. Outlook doesn't seem to let this happen. Is there anyway to force email to be sent through the same smtp server every time?