We've been happily using SimpleMail 3.1.125 up until we switched networks from Bellsouth to AT&T.
Now, whenever we try to send an email using vbscript (Windows Scripting Host), we get this error:
502 unimplemented (#5.5.1)
We have made no changes to our scripts or to SimpleMail - we just switched ISP networks. We use SMTP authentication and we've tested using the SimpleMail client program, but we get the same error. I am able to read from /send to the same email account with Mozilla Thunderbird.
I can't figure out what SimpleMail is trying to do that AT&T doesn't like.
Anyone know of a workaround? Thanks.