🚀 go-pugleaf

> Could somebody please tell me what the standard delimiter of a mail
> spool file is?

"\n\nFrom" where "From" is the beginning of the message.
At the beginning of the spool, there are no leading returns.

Basically, if the last line you read was a blank line and your
current line starts with "From":

	!strncmp(buffer ,"From ", strlen("From "))

you're at the beginning of a message.  Usually, just a leading
"From " is enough since a good mailer will escape other instances
of "From " as ">From ".
--
Eric Ziegast

PS: Code above stolen from MH.