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3.2 KiB
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78 lines
3.2 KiB
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Setup a new Mailu server
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Things to consider
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------------------
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Mailu is working, it has been powering hundreds of e-mail accounts
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since around January 2016, and has delivered over a million emails.
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It is still not massively tested however and
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you should not run any critical mail server until you have properly tested
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every feature.
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Also, the idea behind Mailu is based on the work by folks from Poste.io.
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If free software is not the reason you chose Mailu or if you are seeking
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long-term professional support, you should probably turn to them instead.
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Prepare the environment
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-----------------------
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Mailu images are designed to work on x86 or equivalent hardware, so it
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should run on pretty much any cloud server as long as enough power is
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provided. If you find yourself running Mailu on small hardware, e.g.
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Raspberry Pi or other platforms based on ARM, you will probably find
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some support from `MFAshby's fork`_.
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You are free to choose any operating system that runs Docker (>= 1.11),
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then chose between various flavors including Docker Compose, Kubernetes
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and Rancher.
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Compose is the most tested flavor and should be used by any unexperimented
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user. Make sure you complete the requirements for the flavor you chose.
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You should also have at least a DNS hostname and a DNS name for receiving
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emails. Some instructions are provided on the matter in the article
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[Setup your DNS](dns).
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.. _`MFAshby's fork`: https://github.com/MFAshby/Mailu
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Pick a Mailu version
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--------------------
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Mailu is shipped in multiple versions.
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- ``1.5`` features the most recent stable version for Mailu. This is the
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recommended build for new setups, old setups should migrate when possible.
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- ``1.0``, ``1.1``, and other version branches feature old versions of Mailu
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they will not receive any more patches (except for the stable one) and you should
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not remain forever on one of those branches; you could however setup the stable
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branch by number to avoid introducing unexpected new feature until you read the
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changelog properly. This is the most conservative option.
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- ``latest`` points at the latest build from the master
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development branch. It will most likely contain many more bugs, also you should
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never use it for a production server. You are more than welcome to run a testing
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server however and report bugs.
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Perform the specific setup steps
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--------------------------------
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Specific setup steps are described per flavor (Compose, Kubernetes, etc.)
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and you should follow the steps after completing the requirements.
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Make sure that you test properly before going live!
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- Try to send an email to an external service
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- On the external service, verify that DKIM and SPF are listed as passing
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- Try to receive an email from an external service
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- Check the logs (``docker-compose logs -f servicenamehere``) to look for
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warnings or errors
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- Use an open relay checker like `mailradar`_
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to ensure you're not contributing to the spam problem on the internet.
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All tests there should result in "Relay denied".
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- If using DMARC, be sure to check the reports you get to verify that legitimate
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email is getting through and forgeries are being properly blocked.
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.. _mailradar: http://www.mailradar.com/openrelay/
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