logall

I am using sendmail compiled with logall.c written by Axel
in order to save every outgoing email.

My email server runs both POP3 and SMTP server for the domain abc.com

However, with the effect of logall.c
all messages processed by sendmail are logged successfully,
including incoming mails coming from other domain.
I only want logall to save my SMTP outgoing mail only.

Is there any method to do?