An oddity, and waaaaay OT, so please feel free to redirect me.....
If I cut and paste a list of addresses from the 'To' or 'CC' fields into the BCC field they appear with semi-colons between them. Based on the this I tried to produce a semi-colon separated list of addresses from another program into a .txt file, that the user can cut and paste into a mail-shot.
GW ignored all but the first address.
This isn't mass-mailing by any means, 100 addressees tops, and less than monthly, so I'm trying to be low-tech.