No joy
Added pop3 tcp 110, IMAP tcp 143, Secure SMTP tcp 465, Secure IMAP tcp 585, IMAP over SSL tcp 993, Secure pop3 tcp 995 and HTTP tcp 80. All are any/any and permit. Applied and Saved Config.
If no one has any other ideas I'll have to config kiwi and start capturing FW logs.
TIA