DOVECOT USERDB STATIC DRIVER

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Allows you to specify the default password scheme. You can create, for example, one vmail user which owns all the mails, or you can assign a separate UID for each user. Dict key-value database Redis, memcached, etc. However from Dovecot’s point of view there isn’t much of a difference between them. They can be used to provide default userdb fields based on templates in case they’re not specified for everyone in the passwd file.

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Return “user doesn’t exist”, don’t continue to the next userdb. While that stanza often is:: The password is in the given scheme.

So although Dovecot makes it easier to handle “user domain” style usernames eg. Passwords The password can be in any format that Dovecot supportsbut you need to tell the format to Dovecot because it won’t try to guess it. This documentation is for Dovecot v2.

And of course there’s no need to have domains at all in the usernames.

UserDatabase/Prefetch – Dovecot Wiki

This documentation is for Dovecot v2. The usernames in the passwd and shadow files are expected uservb contain only the user part, no domain. Dict key-value database Redis, memcached, etc. Allows you to specify the default password scheme.

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For a user database, you need to set also uid, gid and preferably also home see VirtualUsers. User Databases After a user has been successfully authenticated, Dovecot looks up the user’s userdb information. Optional extra fields user: IMAP and POP3 protocols currently have no concept of “domain”, doveclt the username is just something that shows up in your logs and maybe in some configuration, but they have no direct functionality.

Empty lines and lines beginning with ‘ ‘ character are ignored. Arguments for the userdb backend.

VirtualUsers – Dovecot Wiki

Multiple passwd files You can use all the variables in the passwd-file filenames, for example: This assumes that the passdb already returned also all the required user database information Lua: See UserIds gids for more information. Return earlier userdb’s success or failure, don’t continue to the next userdb. This file can be used as a passdb: If only using the result for name: However from Dovecot’s point of view there isn’t much of a difference between them. However some authentication mechanisms do have an explicit support for realms pretty much the same as domains.

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So don’t put dovecot into the mail group, and don’t make mails owned by the dovecot user. So, if not the dovecot user, what then? Currently supported user databases are: The userdb lookup is also done by LDA to find out how to deliver mails for the user. You can also have multiple databases.

[Dovecot] userdb static & Quota from LDAP?

Home directories Some people are opposed to the idea of virtual users having home directories, but no matter dovcot you call it, it’s a good idea to have a directory where user-specific configuration and other state is stored. Changes the username can also be done by the passdb lookup Overwriting all mail-related settings, for example: The databases usually contain the following information: If any of the userdbs had an internal failure and the final userdb also returns “continue”, the lookup will fail with “internal doveot.

Usually you shouldn’t need this.