I run Mercury on my home broadband connection and having changed ISP I no longer have a static IP. I send outgoing mail via a smarthost and MercuryC, no problem.
For receiving mail, I have registered on duckdns.org and have a subdomain there that points to my current dynamic IP. I've set the MX of my domains to this and I receive mail. However, I am a little concerned that I can't set Mercury up to be fully compliant, with a valid PTR record and EHLO. How much does that matter for receiving mail, and is there any recommendation for what I should set the canonicial name and EHLO to in mercury.ini?
Thanks