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125

How do you solve email? (fedia.io)

submitted 2 days ago by fonix232@fedia.io to c/selfhosted@lemmy.world

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This Microsoft outage being the last drop in the bucket, I'm looking to get my email/calendar/contacts somewhere under my control.

As I already self-host a number of things (e.g. my Linux ISO collection), and have services exposed to the internet, it would make sense to run it at home.

After all, it's not heavy lifting. It's not hosting 500+ mailboxes for 100+ people. It's just little old me, with a handful of domains, catch-all receiving and a few dedicated sending addresses.

However email is a bit more mission critical than my smarthome control or self hosted LLMs. Downtime could be critically bad, and I still don't trust my home setup to be truly 99.999999% available.

I don't mind paying for a service but if I do I'd prefer something European, given I'm based in the UK (and otherwise am an EU citizen).

I'm really curious how y'all solve it. I guess I'm interested in some kind of hybrid solution where there's my own server and a hosted service, latter which acts as a backup solution, but still fully synced, so if my internet or power goes out (or my server goes down), I can still get mail sent and delivered.

So I'm not only just interested in the stack you run for email but the entire infrastructure, especially if you've solved this sort of off-site fallback service.

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[–] tatterdemalion@programming.dev 12 points 1 day ago (1 children)

Get cheap Hetzner VPS with redundant volume.
Get a domain name.
Run Stalwart for you mail server.
Run Bulwark for your inbox web app.
Run Kanidm for an identity provider.
Configure these DNS records: MX, SPF, DKIM and DMARC

There are more details, but those are the basics.

[–] Squizzy@lemmy.world 3 points 15 hours ago (1 children)

Are there issues with domains not being accepted?

[–] tatterdemalion@programming.dev 1 points 3 hours ago (1 children)

You mean by other email servers? I haven't had any issues yet.

[–] Squizzy@lemmy.world 1 points 1 hour ago (1 children)

Yeah I have heard of issues with websites accepting the addresses as legitimate and the like of outlook auto filtering

[–] tatterdemalion@programming.dev 1 points 1 hour ago

I believe the main thing to consider beyond just correctness of your email server configuration is that large email providers evaluate the reputation of a sender's infrastructure. So for example, if your mail server has an IP address associated with large-scale spammers, that would hurt reputation. And if you are your own ASN or something, you have to build your reputation from nothing. I believe I mostly dodge this problem by just putting my email server in Hetzner.