Pop3c Mailbox Format

The pop3c storage accesses a remote POP3 server as if it were a regular (local)
Dovecot mailbox format.

The remote POP3 mailbox is visible as the INBOX folder on the Dovecot side.

For information on how to configure pop3c in Dovecot, see Pop3c Configuration.



pop3c-config
Pop3c Configuration

See Pop3c for a technical description of Dovecot’s pop3c mailbox format.
Mail Location Configuration Examples

# In-memory index files:
mail_location = pop3c:

# Store index files locally:
mail_location = pop3c:~/pop3c 



Connection Settings



pop3c_features

Default: 
Values: String

    A space-separated list of features, optimizations, and workarounds that can
    be enabled.

    Workarounds:

    no-pipelining
        Prevents use of the PIPELINING extension even when it is advertised.



pop3c_host

Default: 
Values: String

    The remote POP3 host to connect to.



pop3c_master_user

Default: 
Values: String

    The master username to authenticate as on the remote POP3 host.

    To authenticate as a master user but use a separate login user, the 
    following configuration should be employed, where the credentials are 
    represented by masteruser and masteruser-secret:

    pop3c_user = %u
    pop3c_master_user = masteruser
    pop3c_password = masteruser-secret 

    Mail user variables can be used.

    See also
    pop3c_password
    pop3c_user



pop3c_password

Default: 
Values: String

    The authentication password for the remote POP3 server.

    If using master users, this setting will be the password of the master user.

    See also
    pop3c_master_user
    pop3c_user



pop3c_port

Default: 110
Values: Unsigned integer

    The port on the remote POP3 host to connect to.



pop3c_quick_received_date

Default: no
Values: Boolean

    If enabled, pop3c doesn’t require calling TOP for each message in order to 
    get the metadata.



pop3c_rawlog_dir

Default: 
Values: String

    Log all POP3 traffic input/output to this directory.

    See also
    pop3c_rawlog_dir



pop3c_ssl

Default: no
Values: no, pop3s, starttls

    Use TLS to connect to the remote POP3 server.

    

    
Value
 Description
    
no
 No TLS
    
 pop3s
 Explicitly connect to remote POP3 port using TLS
    
starttls
 Use POP3 STARTTLS command to switch to TLS connection
    



pop3c_ssl_verify

Default: yes
Values: Boolean

    Verify remote POP3 TLS certificate?

    Verification may be disabled during testing, but should be enabled during 
    production use.

    Only used if pop3c_ssl is enabled.

    See also
    pop3c_ssl



pop3c_user

Default: %u
Values: String

    The user identity to be used for performing authentication to the source 
    POP3 server.

    Mail user variables can be used.

    See also
    pop3c_master_user
    pop3c_password



Usage Examples 

Connect using STARTTLS to pop3.example.com:

pop3c_host = pop3.example.com
pop3c_password = secret
pop3c_port = 110
pop3c_ssl = starttls
pop3c_user = user@example.com