Mac Forum / Applications / Eudora / September 2007

In Eudora, I sometimes insert an external file (PDF, JPG, etc) into the
body of a message by dragging and dropping it there (especially when
it's short, or when being able to view it directly in the email client
while reading the message will be convenient for the recipient).

Or I more often drag it into the Attachments: header line (when it's
lengthy, or the recipient may or may not want to open it immediately).

Or I've been known to do both (for no really good reason, I guess).

Most recipients seem to be able to handle either method, though some
have trouble with the inserted approach.

Would anyone want to point to, or post, a short tutorial on the relative
merits of, and differences between, the insert and attach methods, e.g.:

1)  Are they really handled differently in any major way in the SMTP
mail protocol?  Is the "Insert" mode really an "attachment" also?

2)  If the "Trash attachments when message is deleted" is set, does that
trash both attachments and inserts?

3)  Is one or the other approach strongly preferred?  (and why?)  Are
there any major email clients that can handle one but not the other?

Thanks for any educational responses . . .