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dovecot

Dovecot container for IMAP server.

How to build the container

docker build --tag=docker.io/modularitycontainers/dovecot .

How to use the dovecot container with enabled IMAP

Command for running dovecot docker container with plain text authentication:

docker run -it -e MYHOSTNAME=localhost -e PLAIN_AUTH=yes -e DEBUG_MODE \
    -v $(pwd)/root/users:/etc/dovecot/users:Z \
    dovecot -d docker.io/modularitycontainers/dovecot

Environment variable DEBUG_MODE is used for debugging proposes from dovecot point of view.

ENVIRONMENT VARIABLES

The image recognizes the following environment variables that you can set during initialization by passing -e VAR=VALUE to the Docker run command.

Variable name Description
PLAIN_AUTH Allows to specify plain text authentication
DEBUG_MODE Used for debugging proposes like installation rsyslog RPM package

In case of usage PLAIN_AUTH add to run command mapping your user file to ``/etc/dovecot/users` file. Example format:

USER:PASSWD:1000:1000::<mail_directory>

Replace USER and PASSWD with your defined user and passwd respectively.

How to test the dovecot service

Command for testing dovecot container with is openssl.

For testing example my users file looks like:

dummy:{PLAIN}redhat:1000:1000::/var/

Testing example:

$ telnet localhost 10143
Trying ::1...
Connected to localhost.
Escape character is '^]'.
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot ready.
a login dummy redhat
a OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE] Logged in
a logout
* BYE Logging out
a OK Logout completed (0.001 + 0.000 secs).
Connection closed by foreign host.

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Dovecot server container with IMAP

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