Address mapping lookup tables
canonical_maps
This parameter specifies optional address mapping lookup tables. The mapping is
applied to both sender and recipient addresses, in both envelopes and in
headers. This is typically used to clean up dirty addresses from legacy mail
systems, or to replace login names by Firstname.Lastname. See
Canonical Mapping for details.
By default, no canonical address mapping is done.
Sensible possible values:
- dbm:/etc/postfix/canonical
- hash:/etc/postfix/canonical
- hash:/etc/postfix/canonical, nis:canonical
- hash:/etc/postfix/canonical, netinfo:/canonical