THE VIRTUAL SERVER HANDBOOK

Managing POP before SMTP

In the default configuration, your Virtual Server never removes addresses

from the database. Once an address is recorded, it is always valid. Users

contacting your SMTP server from their IP address are permitted to use the

server as an SMTP relay host. The command vsmtprelay allows you to

manage the IP addresses in the ~/etc/relayers.db file. Here are some

examples of using vsmtprelay.

To list all recorded IP addresses

From your Virtual Server command prompt, enter

vsmtprelay list

Results resemble the following example:

 # timestamp (UTC): Tue Sep 22 22:15:27 1998

 10.11.12.13 906502527

The example above shows the recorded IP address (10.11.12.13), the

associated timestamp (906502527), and a comment line showing the

timestamp in decoded form as a date and time in Coordinated Universal

Time (UTC).

To list all addresses older than 10 minutes in the database

From your Virtual Server command prompt, enter

 vsmtprelay list 10

To list every address in the database, including those with

timestamps in the future:

From your Virtual Server command prompt, enter

 vsmtprelay dump

To edit the database contents

From your Virtual Server command prompt, enter

vsmtprelay dump > ~/etc/relayers

Note:  The database contents are placed in the 

~/etc/relayers

 file.

You can manually edit (adding, changing, or removing entries) the

contents of the 

~/etc/relayers.db

 file.

To rebuild the database from your edited copy

From your Virtual Server command prompt, enter

% /usr/sbin/makemap hash ~/etc/relayers.db <

~/etc/relayers

To expire all addresses in the database

From your Virtual Server command prompt, enter

% vsmtprelay expire

To expire addresses in the database older than 60 minutes

From your Virtual Server command prompt, enter

% vsmtprelay expire 60

COPYRIGHT 

 1999  DIGITAL TOOLS  LLC.

78