Paul Wilde :: My site of stuff   🗺 🗪


A simple, configurable autodiscover/autoconfig service for distributed and self-hosted services.

Codeberg = codeberg link

What is MailAutoConf?

MailAutoConf is autodiscover/autoconfig web server for self-hosted mail services which do not have their own autodiscover service.

What does MailAutoConf do?

MailAutoConf is currently in very early stages, but it does generate valid autoconfig XML files (/mail/config-v1.1.xml) compatible with many mail clients i.e. Thunderbird, Evolution, etc.
Theoretically, anything that can read the standard autoconfig XML file -, should be able to auto-configure using this service.


MailAutoConf runs its own webserver on port 8010. You will need to supply a volume for the configuration file and port forwarding.

podman run -dt \
  --name mailautoconf \
  -v ./config:/mailautoconf/config \
  -p 8010:8010 \

You will need a reverse proxy server to publish to the outside world and handle SSL encryption.
For example, in nginx:

server {
  listen                443 ssl;
  server_name ;
  ssl_certificate       /path/to/certificate.file;
  ssl_certificate_key   /path/to/certificate.key
  location / {
    proxy_set_header    X-Forwarded-Host $host:$server_port;
    proxy_set_header    X-Forwarded-Server $host;
    proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_pass          http://localhost:8010/;
    proxy_redirect      http://localhsot:8010/ /;
    proxy_read_timeout  60s;

First run will create sample.yaml files in the config directory. Copy these to config.yaml and services.yaml and configure them to your needs.

MailAutoConf will handle all the URLs it’s able to deal with, i.e. /mail/config-v1.1.xml, /Autodiscover/Autodiscover.xml automatically.

DNS config

You will need to configure DNS records for your domain.
I would recommend setting up an A record for autoconfig.your.domain to point directly to your MailAutoConf’s instance which will work for Thunderbird and Evolution clients. Then, if Outlook Autodiscover is required (currently not implemented), configure a SRV record to redirect to the autoconfig.your.domain A record. i.e.

Type                                TTL  P  M  Port Target
SRV _autodiscover._tcp.your.domain  3600 10 10 443  autoconfig.your.domain


MailAutoConf has been tested and confirmed working with the following software packages

Future plans

MailAutoConf is currently in very early stages, with a very limited set of features. My hope for MailAutoConf is to run as an autoconfig service which provides Calendar and AddressBook locations as well. Calendar and AddressBook is in the autoconfig XML documentation, but currently not implemented. MailAutoConf can generate the correct information for Calendar and AddressBook into the autoconfig XML file, though no clients currently use it.


When will it be ready for production?

Well, not yet. Though it does sort of work already.
I’m working on this ultimately for my own use for my own small business. I’m hoping once it’s good enough I could deploy the set up to my businesses customers and ultimately get them away from a Microsoft Exchange based environment. There’s a long way to go for that right now though.

If you feel you may be able to help, or ideas on features and their implementation, notice any bugs, or just want to say hi. Please do so and submit a pull request if required.

Thanks for reading!

Published : Tue, 17 August 2021 at 10:49am +0100