niccol:
The thing is that in my experience adding attachments to emails can be a bit unstable/flaky on some servers. On some servers it seems to work fine. Just my thoughts. I don't claim to be an expert about those kind of things ;-)
FWIW, I think you'll find your experience in this regard is pretty much the as everyone else's that have attempted the same thing. There are some servers that are setup explicitly to disallow such attachments (all in the name of 'security'), while other servers haven't been set up to either allow or disallow them, which means they'll work if the supporting software happens to be installed on the server in the first place, and finally there are the servers being run by knowledgeable people that appreciate the need for this functionality and actually set things up so that it works both reliable and securely.
Alas, the latter appears to be the minority, and the majority using the luck of their particular installation rather than allowing or disallowing by design (a poor way to run a server IMO, but that's the way things seem to be these days) :(
Annoyingly, many of those that rely on the luck of their particular installations can't/won't be 'educated', and if anyone complains that attachments don't work with their servers aren't likely to get any help, but are generally fobbed of with 'we don't allow it because of security reasons', rather than the real reason that they don't have a clue how to make it work.
Cynical bugger aren't I? :yes:
Cheers
Rod