1 Module 6 Managing Recipients and Aliases. 2 Address Rewriting

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Presentation transcript:

1 Module 6 Managing Recipients and Aliases

2 Address Rewriting /opt/insight/etc/postfix/canonical_sender: /opt/insight/etc/postfix/canonical_recipient: sender_canonical_maps = hash:/opt/insight/etc/postfix/canonical_sender recipient_canonical_maps = hash:/opt/insight/etc/postfix/canonical_recipient /opt/insight/etc/postfix/main.cf:

3 Hiding Host Names  Masquerading intentionally hides internal hostnames   In main.cf: masquerade_domains = example.org

4 Hiding Host Names  Masquerading intentionally hides internal hostnames   In main.cf: masquerade_domains = example.com, example.net, example.org, !sales.example.com masquerade_exceptions = alice, bob

5 Directing Sent to Unknown Users sent to unknown users:  Returned to sender by default  Can be directed to an user or alias  Beware of spammers In main.cf: luser_relay = alice local_recipient_maps =

6 Relocating Users and Domains  Relocation maps used when users or domains move  Configure relocation rules in main.cf: relocated_maps = hash:/opt/insight/etc/postfix/relocated  Define relocation rules in lookup

7 Relocating Users and Domains Relocated User Relocated Domain

8 Types of Aliases  Postfix supports numerous types of aliases  SCOoffice Server stores aliases two ways Stored in LDAP Stored in a file

9 Types of Aliases  From /opt/insight/etc/postfix/main.cf: alias_maps = hash:/opt/insight/etc/mail/aliases alias_database = hash:/opt/insight/etc/mail/aliases local_recipient_maps = $alias_maps ldap:ldapsource

10 Types of Aliases  From /opt/insight/etc/mail/aliases:

11 Types of Aliases  Process alias files with postalias(1):  # postalias hash:/opt/insight/etc/mail/aliases  Reload Postfix if a new alias lookup table is added to main.cf:  # postfix reload

12 Exercise: Adding a New Alias File  Edit /opt/insight/etc/postfix/aliases  Process the alias file  Reload Postfix