Anyone see a problem if I login into the smtp server with Username different than the Return-Path?

It seems to work OK; but, I know from experience using the mail servers that increasingly everything must be exactly right to prevent recipient mail servers from rejecting emails.

So, I started using authenticated smtp exclusively.

Reason I'm asking is that I'm developing an application that will have several pages and each one will have a different Return-Path and Reply-To.

It will make things simpler if I can login to the smtp server with just one username/password.


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