Hi all,
while trying to make one user use two email addresses (needed because I
send from several addresses and don’t want to create different
privileged users just to be able to use commands by email), I tried both
foo@bar foo@baz
and
foo@bar, foo@baz
as email addresses. Neither generates a warning when saving.
When RT decides to send email to the user, email will only be sent to
foo@bar in the first case. In the second case, email goes to foo@baz,
instead.
As a quick fix, I suggest checking the email address with a regexp and
rejecting everything that is not a single address.
In the longer term, supporting several email addresses would be great 
Thanks,
Richard