Problem with "@" in a Username

[Robert Thorpe]

Hello,

My webspace provider gives usernames that are email addresses.  So, the
username for the smtp, pop and imap servers for this email address is
"rt@robertthorpeconsulting.com".

There's a problem here because movemail uses "@" as the delimiter for
the servername.  Everything after "@" is treated as a server name.

I've found that I can fix this by using "%40" instead of @.  So, URL
encoding works.  But it doesn't seem to say that in the movemail
manual.  I think it should mention it.

I think it would be better if there were another options format which
splits up the information in a more rigourous way.  One where the server,
username, port and password are all passed in separate options rather
than one big one.

Here is the Emacs bug where I originally reported this:
https://debbugs.gnu.org/db/16/16946.html

BR,
Robert Thorpe