No Valid Author Specification Present

[rhix]

I'm getting the following error when trying to send email via mutt:

No Valid Author Specification Present
Error sending message, child exited 9 ().

I'm running Mutt on a sco openserver 5.0.5 box, using MMDF for mail
transport.  Any ideas on what may stop this problem would be helpful, mutt
runs
fine on my other two identical sco boxes, but the third one gives me that
error when trying to send an email.

I would appreciate any and all help with this problem.


Robert Hix