Tapcis Mail Rejected?

[Chris Carson]

Today I attempted to send my Dixonary votes in from my tapcis.com mail account. I received the following message in Outlook Express:

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'coryphaeus@yahoogroups.com'. Subject 'Re: [Dixonary] ZOUK Definitions! Vote Now!', Account: 'Tapcis Mail', Server: 'smtpout.secureserver.net', Protocol: SMTP, Server Response: '553 Sorry, that domain isn't in my list of allowed rcpthosts.', Port: 25, Secure(SSL): No, Server Error: 553, Error Number: 0x800CCC79


That's the first time I've seen this particular message and wonder if it's a configuration problem on my end or some other glitch.