I like to receive email notifications when new comments are posted to my blogs (especially when they're spam comments as I like to delete those right away). The problem is that I can't use the same outgoing mail server settings that I use in my email application in BlogEngine's email settings. When I do, I get:

Not good.

After some digging, I came across this post by Donn Felker, which mentions using relay-hosting.secureserver.net as the outgoing SMTP server. Plug it in, and this is what I get:

Success! It's nice to have an easy fix every once in a while.

References

Installing BlogEngine.NET on GoDaddy Shared Hosting (see bottom of post)

Setting up Your Email Account in the Email Control Center