The original mantra of easyDNS was “we kill lock-in”, and this is one of the tools that exemplifies that.
With the advent of widespread residential broadband access, it became viable and relatively easy to set up one’s own mail server at home on their broadband connection.
This garnered mixed reactions from numerous broadband providers, who started to firewall the ports mail servers receive email on so that their customers couldn’t do that.
We never understood that logic. If people are paying for the bandwidth, why should ISPs care if their customers are using it to receive their own email?
Which is why we created SMTP port forwarding. If the ISP is blocking you on port 25, then just create a host A record for your mail server (mail.yourdomain.com for example). Then when you are adding the Mail Server in the MX record area, enter ‘mail.yourdomain.com:2525’ using the alternative port number your mail server is ready to listen on. Any email we get here for you we’ll then dequeue to the alternative port.
SMTP port forwarding is supported in the Standard DNS, DNS Pro and Enterprise DNS packages.