Thanks, Svante, and I also got a reply from Raja to an email I sent.
The email server I use is called spamarrest.com … while my first attempt was sent to an email address on my own web server, the second was sent directly to my spamarrest.com account. Neither of them showed up. It may very well be that the spamarrest.com server is rejecting your emails, because even with my personal address, that gets “polled” by spamarrest every minute, so it’s possible spamarrest rejected the message after it was extracted from my personal server.
Anyway, Axcrypt is working great now!