docker-mailserver VS iRedMail

I can recommend Docker mailserver (it also works with Podman). It is already pretty lightweight but you can even make it lighter and it has an active community as well as regular updates.

https://github.com/docker-mailserver/docker-mailserver https://docker-mailserver.github.io/docker-mailserver/latest/ https://www.programonaut.com/how-to-host-a-mail-server-with-docker-for-free-step-by-step/

Use https://github.com/docker-mailserver/docker-mailserver or mailcow . They both provide reasonable default setup for spam detection and even UI for adjusting settings.

" this docker based mail server looks pretty legit https://github.com/docker-mailserver/docker-mailserver "

Check https://github.com/docker-mailserver/docker-mailserver It has almost everything in a single docker image. Email is not the easiest to implement with container(s), but that project has managed it.

I set up docker-mailserver[0] Monday in ~6 hours, most of which were me trying to be fancy using podman instead of docker and dealing with SELinux. But then again I did choose it over mail-in-a-box for just that level of customization. Obviously I can't tell how reliable it will be in the long run yet, but since it's using the classic Postfix/Dovecot stack I expect it'll be pretty stable

[0] https://github.com/docker-mailserver/docker-mailserver

Handling lots of production email for hundreds of domains for the past 10 years on https://www.iredmail.org/

If you have a better solution, for example a good provider who offer agency packages which allows many domains and there is no catch, for example very small disk space, then hit me right away. Otherwise, please share your experience with hosting your own mail service. I found https://mailinabox.email/ and https://www.iredmail.org/ for example, but never had any experience with neither of them.

I use iRedMail

iRedMail : https://www.iredmail.org/ good for samll companies and teams (the free version still serve but with no send limtes)

Last suggestion is to use iredmail and maybe iredadmin-pro (paid) for mailbox servers. It's a roll-your-own solution but so long as you are very detail oriented, strict with policies, use change management, and use something like ansible, it can really help this email stack scale. Also would help with #4.

Developed by iRedMail team: https://www.iredmail.org/

iRedMail. Free to use and basically trouble-free for me after some initial issues got worked out on my config.

Or host your email server. There is even services like r/VirtualMin & r/Webmin plus others like Mail-in-a-Box or iRedMail