homelab/docs/ADR/003-mailserver.md

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# 003-mailserver
## Status
In progress
## Context
Gandi free email will become a pay service in 2 month.
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In this condition it will be interesting to study selfhosted mail solution.
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### domain name
do I take advantage of this to change domaine name:
Pro:
- could test more easy
- could redirect old domain name to new one untile end of gandi domain (2026)
- get a more "normal" extention
con:
- need to progresively update every personal account
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### Container localisation
on hetzner:
- need to increase memory
on homelab:
- need to redirect all serveur flux to hetzner to be sure to be sure that mail will be send with hetzner IP (control PTR on this IP)
- hetzner will be too a SPOF
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### software choose
mail server will run in nomad cluster.
docker-mailserver -> 1 container
mailu
## Decision
we will switch to another domain name on "https://www.bookmyname.com/": ducamps.eu""
docker-mailserver will be more easier to configure because only one container to migrate to nomad
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for begining container will be launch on hetzner
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## Consequences
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- need to buy a new domaine name and configure DNS
- inprove memory on corwin (done)