Requistion for Documentation or Ideas on Mailcow High Availabity Failover

srini

Hi,

We are planning to use Mailcow for our Company’s Production Environment. However, we are unable to find any solution or documentation on making the Mailcow with HA ( Even if a node fails, there should be a continuous service by having services and dashboard available on another node, for example in our case we are planning to build a three-node cluster ).

So I request anyone can help me with a solution or documentation on the same.

Thanks and Regards
Srinivasan

esackbauer

Mailcow is not designed to run in a cluster.
I personally think clusters are a thing of the past, they add a lot of complexity (and thus possible points of failure) to the solution, and hosted VMs have a pretty good uptime nowadays.

Why not asking the guys of servercow.de for a managed mailcow instance?

srini

Thank You @esackbauer

Then, is there any solution to safeguard things when the VM is down like DR?

DocFraggle

You could create a cold-standby replica and update it regularly

https://docs.mailcow.email/backup_restore/b_n_r-coldstandby/

srini

Hi, @DocFraggle Thank you for your suggestion. We will start working based on the document you provided. And get back to you for further queries in the future.

maddler

You might also want to add multiple relays in order to add resiliency to the overall solution.