We customarily use Eudora Pro 3.1.3 to send and receive e-mail with our university ISP connection. When we travel, however, we use our CompuServe account. We have been able to connect to the Internet via CompuServe 3.0.2, and receive our mail with Eudora, but when we try to send mail with Eudora and the CompuServe connection, we get the following message:
There has been an error transfering your mail. I said: RCPT TO: <firstname.lastname@example.org> and then the SMTP server said: 553 Sorry, that domain isn't in my list of allowed rcpthosts (#5,7,1). Sorry.
Where I wrote <email@example.com> above, it means any person to whom we try to send a message, no matter what the address.
What is interesting, however, is that if we change our SMTP server setting in Eudora from the one we customarily use and prefer to use <mail.utexas.edu> (and which is also the POP account and e-mail address we prefer), to another one we prefer not to use <mail.austin.cc.tx.us>, the messages go through with no problem.
This problem has occurred on all three of our Power Macs, running System 8.1.
How can we get the mail to go through without having to change the SMTP server?