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110 lines
3.9 KiB
Markdown
110 lines
3.9 KiB
Markdown
To enable the [fetchmail](http://www.fetchmail.info) service to retrieve e-mails set the environment variable `ENABLE_FETCHMAIL` to `1`. Your `docker-compose.yml` file should look like following snippet:
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```yaml
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...
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environment:
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- ENABLE_FETCHMAIL=1
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- FETCHMAIL_POLL=300
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...
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```
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Generate a file called `fetchmail.cf` and place it in the `config` folder. Your `docker-mailserver` folder should look like this example:
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```
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├── config
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│ ├── dovecot.cf
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│ ├── fetchmail.cf
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│ ├── postfix-accounts.cf
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│ └── postfix-virtual.cf
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├── docker-compose.yml
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└── README.md
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```
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# Configuration
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A detailed description of the configuration options can be found in the [online version of the manual page](http://www.fetchmail.info/fetchmail-man.html).
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## Example IMAP configuration
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```
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poll 'imap.example.com' proto imap
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user 'username'
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pass 'secret'
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is 'user1@domain.tld'
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ssl
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```
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## Example POP3 configuration
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```
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poll 'pop3.example.com' proto pop3
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user 'username'
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pass 'secret'
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is 'user2@domain.tld'
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ssl
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```
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__IMPORTANT__: Don’t forget the last line: e. g. `is 'user1@domain.tld'`. After `is` you have to specify one email address from the configuration file `config/postfix-accounts.cf`.
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More details how to configure fetchmail can be found in the [fetchmail man page in the chapter “The run control file”](http://www.fetchmail.info/fetchmail-man.html#31).
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## Polling interval
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By default the fetchmail service searches every 5 minutes for new mails on your external mail accounts. You can override this default value by changing the ENV variable `FETCHMAIL_POLL`.
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```yaml
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- FETCHMAIL_POLL=60
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```
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You must specify a numeric argument which is a polling interval in seconds. The example above polls every minute for new mails.
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# Debugging
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To debug your `fetchmail.cf` configuration run this command:
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```
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./setup.sh debug fetchmail
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```
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For more informations about the configuration script `setup.sh` [[read the corresponding wiki page|Setup-docker-mailserver-using-the-script-setup.sh]].
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Here a sample output of `./setup.sh debug fetchmail`:
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```
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fetchmail: 6.3.26 querying outlook.office365.com (protocol POP3) at Mon Aug 29 22:11:09 2016: poll started
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Trying to connect to 132.245.48.18/995...connected.
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fetchmail: Server certificate:
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fetchmail: Issuer Organization: Microsoft Corporation
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fetchmail: Issuer CommonName: Microsoft IT SSL SHA2
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fetchmail: Subject CommonName: outlook.com
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fetchmail: Subject Alternative Name: outlook.com
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fetchmail: Subject Alternative Name: *.outlook.com
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fetchmail: Subject Alternative Name: office365.com
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fetchmail: Subject Alternative Name: *.office365.com
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fetchmail: Subject Alternative Name: *.live.com
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fetchmail: Subject Alternative Name: *.internal.outlook.com
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fetchmail: Subject Alternative Name: *.outlook.office365.com
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fetchmail: Subject Alternative Name: outlook.office.com
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fetchmail: Subject Alternative Name: attachment.outlook.office.net
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fetchmail: Subject Alternative Name: attachment.outlook.officeppe.net
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fetchmail: Subject Alternative Name: *.office.com
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fetchmail: outlook.office365.com key fingerprint: 3A:A4:58:42:56:CD:BD:11:19:5B:CF:1E:85:16:8E:4D
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fetchmail: POP3< +OK The Microsoft Exchange POP3 service is ready. [SABFADEAUABSADAAMQBDAEEAMAAwADAANwAuAGUAdQByAHAAcgBkADAAMQAuAHAAcgBvAGQALgBlAHgAYwBoAGEAbgBnAGUAbABhAGIAcwAuAGMAbwBtAA==]
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fetchmail: POP3> CAPA
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fetchmail: POP3< +OK
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fetchmail: POP3< TOP
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fetchmail: POP3< UIDL
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fetchmail: POP3< SASL PLAIN
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fetchmail: POP3< USER
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fetchmail: POP3< .
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fetchmail: POP3> USER user1@outlook.com
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fetchmail: POP3< +OK
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fetchmail: POP3> PASS *
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fetchmail: POP3< +OK User successfully logged on.
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fetchmail: POP3> STAT
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fetchmail: POP3< +OK 0 0
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fetchmail: No mail for user1@outlook.com at outlook.office365.com
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fetchmail: POP3> QUIT
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fetchmail: POP3< +OK Microsoft Exchange Server 2016 POP3 server signing off.
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fetchmail: 6.3.26 querying outlook.office365.com (protocol POP3) at Mon Aug 29 22:11:11 2016: poll completed
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fetchmail: normal termination, status 1
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``` |