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Thinking of setting up a mail server, do I need a 2nd VPS? [affordable suggestions welcome!] (alien.top)
submitted 11 months ago by AudioBabble@alien.top to c/main@selfhosted.forum
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Hey all, I have a VPS with Hostinger that serves a few websites, very basic stuff, simple blogs or static pages, very low traffic.

At the moment I have 'custom domain' emails set up with Protonmail and also Tutanota. They are mainly for client communication one-to-one, I very rarely if ever do mass mail-outs.

I'm looking into the possibility of setting up a mail server instead, but it seems it's generally not a good idea to run mail server and web server on the same VPS. [-- if anybody thinks there may be exceptions to this, do let me know, because I would still be interested if it's not an entirely bad idea?]

So I'm wondering about a dedicated VPS to run my mail server, but really don't want to pay much.

In order for it to be cost effective (as opposed to just paying for a mail service with multiple custom domains), i'd want a VPS with 3GB ram and 20-30GB storage that doesn't block port 25, for less than $6 per month.

Is this likely? Anyone know of any contenders?

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[–] adamshand@alien.top 2 points 11 months ago (2 children)

There's no technical problem with running a mail server on the same server as websites. The only concern is simply that web applications are much more likely to have bugs and get hacked than your mail server. If a web app does get hacked, all of your mail is potentially compromised. If you don't care about that, I'd say ... go for it.

[–] rnimmer@alien.top 1 points 11 months ago (1 children)

you should be using containers though

[–] adamshand@alien.top 1 points 11 months ago

I like using containers, but it doesn't make any difference to the above. Containers can be exploited as well.