Can't send mail on personal account

I've been wrangling with Sylpheed 8.2.10 and 8.2.11 Claws on Windows 
(NT4, 2000 and XP Pro).  I have not managed to send mail from one of my 
accounts, though I can send from the other with no problem.  This is 
basically a show stopper, and it means I can't really use Claws as my 
main MUA.

Here's the situation:

    * I have three SMTP servers available:
         1. my work one (work.com) - won't relay from outside address to
            outside address
         2. my home broadband one (home.com) - uses SSL for POP, don't
            know about SMTP
         3. another ISP I have an account with (isp.com) - supposedly open
    * With *all* of these servers, I get "Error occurred while sending
      message to ...".  Looking at the protocol log, the message is
      always either:
         1.  "Can't connect to SMTP server ..." or
         2. "Error occurred while authenticating"
    * I've tried work.com, which works perfectly with my work account,
      but it fails ("Can't connect ...") from my home account.  I'm
      getting suspicious that since the POP and SMTP servers have
      different usernames and passwords, Sylpheed is somehow not getting
      that right.  However, I would expect that to give me msg #2
      ("Error ... authenticating") instead of the other one.
    * I can read mail from home.com, but can't figure out how to make it
      work for SMTP.  I've set both to use SSL, but I also tried SSL off
      for SMTP.  In fact, I've tried every permutation I could think of
      for authentication method, SSL, etc.  Nothing works.

Anyone have any clues about this?  I'd love to get this working, and use 
Sylpheed-Claws for everything, but I'm stuck.

Thanks!

-pd

-- 
--------
                             Peter Davis
               Funny stuff at http://www.pfdstudio.com
                 The artwork formerly shown as prints
    List of resources for children's writers and illustrators at:
                  http://www.pfdstudio.com/cwrl.html




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