I found a reason for the clipped emails
?
?
If your group has public archives, the domain information is automatically stripped from the online message archive. This is to keep spammers and bots from mining your public messages for valid email addresses.
The exception is any post with the groups.io domain, in which case it is retained.
If absolutely necessary, try posting it like this:? myemail(at)domain(dot)net [or something to that effect]. I've found that most human beings are sharp enough to figure out what that really means, while (hopefully) the bots might struggle with it a little bit.