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Question for Selfhosted mail server (lemmy.ml)

submitted 1 week ago* (last edited 1 week ago) by AbidingOhmsLaw@lemmy.ml to c/selfhosted@lemmy.world

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I'm working on self hosting a e-cloud server ( for e/os phones). The mail server component of it wants to have a rDNS PTR record from my public IP back to mail.<myDomain.com>. I can't do that since I'm using dDNS and my ISP won't give me that ability unless I have business service (very expensive). The ISP I have is my only choice and I hate them. I have DNS Zones hoisted elsewhere to handle my dDNS scripts for everything but rDNS. So on tyo my question, Anyone know of a way to get a public IP service that will allow me to make a rDNS PTR entry and forward all traffic to my real public IP? Would that even work?

EDIT: Thanks everyone for the suggestions, I have considered VPS but I'm trying to save the extra cost of the VPS and also like the idea of having all my data where I can actually touch it. I was hoping for something like a reverse proxy service I could get with DNS and a static IP (so I could have rDNS) for cheaper than a VPS since I would not need the storage, CPU, etc.

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[–] IsoKiero@sopuli.xyz 7 points 1 week ago

DNS PTR records belong to the entity who owns the IP addresses, you can't make reverse records for arbitary addresses like you can with forward zones. I haven't heard about any residential ISP which would give access to PTR records and even on business lines that's usually a premium.

What you could do is to get a VPN service which gives you these options, if there is one, I don't know. Most likely you're looking for a VPS for that and tunnel traffic with some kind of VPN-setup to your local instance. And at that point you might as well run the whole thing on VPS unless you happen to need a ton of storage or some other reason makes pure VPS server too expensive.