We use LDAP lookup tables in the following postfix maps:

    virtual_mailbox_maps (vmm)

    virtual_mailbox_domains (vmd)

    virtual_alias_maps (vam)

    virtual_alias_domains (vad)

    sender_canonical_maps (scm)

    transport_maps (trm)

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attr                           |unknown|       | valid | valid |       | user  |impl   |trans  |catch  |domain |forward
 |                             |rcpt   | acct  | local | alias | dist  | canon |alias  |port   |all    |canon  |
 v                feature ->   |reject | alias |domain |domain | list  | ical  |domain |maps   |mailbox|ical   |
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zimbraMailDeliveryAddress      | vmm-v | vam-v |       |       |       | scm-k |       | trm-k | vam-v |       | vam-k
                               | vmm-k |       |       |       |       |       |       |       |       |       |
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zimbraMailForwardingAddress    |       | vam-v |       |       | vam-v |       |       |       |       |       | vam-v
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zimbraMailAlias                |       | vam-k |       |       | vam-k | scm-k |       |       |       |       |
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zimbraMailCanonicalAddress     |       |       |       |       |       | scm-v |       |       |       |       |
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zimbraMailStatus               | vmm-k | vam-k | vmd-k | vad-k | vam-k | scm-k | vam-k | trm-k | vam-k | scm-k | vam-k
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zimbraDomainName               |       |       | vmd-k | vad-k |       |       |       |       |       |       |
                               |       |       | vmd-v | vad-v |       |       |       |       |       |       |
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zimbraDomainType               |       |       | vmd-k | vad-k |       |       |       |       |       |       |
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zimbraCatchAllAddress          |       |       | vmd-k | vad-k |       |       | vam-k |       | vam-k | scm-k |
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zimbraCatchAllForwardingAddress|       |       | vmd-k | vad-k |       |       | vam-v |       |       |       |
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zimbraMailCanonicalAddress     |       |       |       |       |       |       |       |       |       | scm-v |
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zimbraMailTransport            |       |       |       |       |       |       |       | trm-v |       |       |
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