@alchemist SMTP problem is probably your username. It's not the same as imap or pop. It includes your domain. Mine is:
@tomasino That is pretty much what I did, but unfortunately I still get an authentication error when connecting to mx.sdf.org:587.
I hear that only some kinds of accounts can use this service, is there a practical way for me to check which "account type" I have?
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko