i just got make from a mates place trying to help him fix "we can receive but can't send email" problem.
they had telkom adsl internet, now openserve fibre with cool ideas, they've kept their telkom email address.
i googled and found some info, followed all the steps, test settings, complete ok.
send mail to myself, goes into outbox then sent items. mail never arrives.
test settings again, fail, no response smtp server. close outlook, open again, test settings ok, send mail, no mail arrives, goes into a black hole somewhere. managed to get 1 message through out of 10.
i told them its kuk telkom server and they should get gmail.