I’ve set up postfix to use my ISP’s smtp server for outgoing mail and I’ve port forwarded port 22.
My server is able to send mail anywhere, and for as far as I’ve tested it it is able to receive mail from my hotmail account. It is only when I try to send a mail from my gmail account to a mailbox on my server that the mail never arrives.
I can’t seem to figure out why, maybe I’m missing something very obvious? Does it have anything to do with POP3?