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Recommendation for outgoing-only SMTP server (lemmy.world)

submitted 7 months ago by markstos@lemmy.world to c/selfhosted@lemmy.world

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I'm looking for a simple sendmail replacement to receive local mail, such as from cron and service failures and forward it to on to a real SMTP server.

I have used msmtpd successfully but thought I'd ask if folks have other solutions they like.

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[–] atzanteol@sh.itjust.works 6 points 7 months ago (3 children)

ssmtp is what I've used before.

[–] markstos@urbanists.social 6 points 7 months ago (2 children)

@atzanteol @markstos@lemmy.world

ssmtp is unmaintained.

msmtp is the recommended successor. The Arch wiki recommends also considering OpenSMTPD, which I haven't looked at yet.

https://wiki.archlinux.org/title/SSMTP

[–] EinfachUnersetzlich@lemm.ee 1 points 7 months ago

I just started using OpenSMTPD as a backup relay and it seems to work for that. Very lightweight and easy to set up.

[–] atzanteol@sh.itjust.works 1 points 7 months ago

Ah, thanks

[–] mbirth@lemmy.mbirth.uk 2 points 7 months ago* (last edited 7 months ago)

ssmtp is also my go-to for this. Or dma (DragonFly Mail Agent) - if available - which provides a queue in case the delivery to the smarthost fails. But as it's not running as a daemon (saving resources), so you have to setup a regular cronjob to process the queued messages.

[–] synestine@sh.itjust.works 1 points 7 months ago

I use ssmtp as well for a simple sendmail replacement. It takes over the sendmail command, doesn't open any ports. You configure it for the domain you want and tell it what server to send everything to and it works.