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55 lines
2 KiB
Markdown
55 lines
2 KiB
Markdown
# Multiple domains configuration
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## Separate account namespaces
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Given two domains, example.org and example.com. foo@example.org and
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foo@example.com are different and completely independent accounts.
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All changes needed to make it work is to make sure all domains are specified in
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the `$(local_domains)` macro in the main configuration file. Note that you need
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to pick one domain as a "primary" for use in auto-generated messages.
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```
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$(primary_domain) = example.org
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$(local_domains) = $(primary_domain) example.com
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```
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The base configuration is done. You can create accounts using maddyctl using
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both domains in the name, send and receive messages and so on. Do not forget
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to configure corresponding SPF, DMARC and MTA-STS records as was
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recommended in the [introduction tutorial](setting-up.md).
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## Single account namespace
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Lets say you want to handle messages for domains example.org and example.com
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and make that foo@example.org and foo@example.com are the same accounts.
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Sadly, this case is not very well-supported by maddy, but it still can be
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implemented.
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You already should have the primary domain set for autogenerated messages and
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so on. The idea is to redirect all messages from non-primary domains to the
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primary one.
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For each handled domain, the following line should be added to the
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`local_modifiers` block:
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```
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replace_rcpt regexp /(.+)@example.com/ $1@$(primary_domain)
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```
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It does regexp replacement, turning anything@example.com into
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anything@$(primary_domain) where $(primary_domain) in our case is example.org.
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E.g.
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```
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$(primary_domain) = example.org
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modifiers local_modifiers {
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replace_rcpt regexp /(.+)@example.net/ $1@$(primary_domain)
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replace_rcpt regexp /(.+)@example.com/ $1@$(primary_domain)
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}
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```
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With that configuration, all messages for foo@example.net and foo@example.com
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will end up in the foo@example.org mailbox.
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Note, however, no account credentials aliasing is done. Users should always use
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the account name with the primary domain to access IMAP mailboxes.
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**Note 1**: All domains should still be listed in the `$(local_domains)` macro.
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