Ro,
Started a new group. Only one gal is having problems posting, getting a
Daemon message error. What might be the cause of this??
I think it is likely that she's sending to an incorrect email address. Errors from the "Mailer Daemon" are typically from one's own email system, saying that it had some problem attempting to deliver the message.
But the only way to know would be to read the error message and see what it says.
I am suspecting its not an IO issue, but what do I know.
I think it is most likely that your suspicion is correct.
Shal