Hi,
right now we are using Mailbox+Hub+Cas on one machine, there are a lot of external IMAP clients who use Hub Transport as SMTP server.
After subscribing to Edge do I have to change SMTP publishing rule in TMG from Hub Transport IP to Edge or do I leave it as it is?
Or should I publish both SMTP services:
SMTP to Hub Transport - for imap clients to send mail using SMTP
SMTP to Edge - for receiving mail from internet
Maybe neither is correct?