I have install mutt1.2.5.1i & sendmail 8.9.3 with cf file version 5, running at SCO OpenServer 5.0.6. Sendmail is setup to send log file from Unix server to Exchange server where office email account reside. There is no problem to relay the email with attachedment with mutt from Unix to Exchange, but only those email with attachement less than 200K can be immediately sending out from sendmail. For those email with larger attachement, the email is queued (mailq). How to overcome this delay?
