[horde] rcpthosts?

[Chip Bell]

Hello

 

When I send an email to x at hotmail.com via browser, it works fine.  When
I try to send it via Outlook Express, I get an error  The message could
not be sent because one of the recipients was rejected by the server.
The rejected e-mail address was 'flyinfingers5 at hotmail.com'. Subject
'test', Account: '192.168.1.8', Server: '192.168.1.8', Protocol: SMTP,
Server Response: '553 sorry, that domain isn't in my list of allowed
rcpthosts (#5.7.1)', Port: 25, Secure(SSL): No, Server Error: 553, Error
Number: 0x800CCC79

 

Has anyone seen this before?