I have hmailserver set up and accepting email for projectattack.co.uk domain - I can connect to the server through port 110 pop3 using both gmail and mail.app on osx
I have a cname pointing smtp to projectattack.com and have opened port 25 to accept incoming traffic: smtp.projectattack.co.uk
My server hosting company provide a relay and no auth is required as they only accept messages to relay from ips in their network. This relay has been configured in the administrator app under Delivery of Mail/SMTP Relayer
My server has a static IP
I can't make my email client connect to the hmailserver for the outgoing smtp server.
Is there something above and beyond what i have mentioned here that I need to configure?