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The figure below zooms in on those parts of Postfix that are most
involved with address rewriting activity. See the
OVERVIEW document
for an overview of the complete Postfix architecture. Names followed
by a number are Postfix daemon programs, while unnumbered names
represent Postfix queues or internal sources of mail messages.
The table below summarizes all Postfix address manipulations.
If you're reading this document for the first time, skip forward
to "
Address
rewriting when mail is received". Once you've finished reading
the remainder of this document, the table will help you to quickly
find what you need.
| Address manipulation | Scope |
Daemon | Global turn-on control | Selective
turn-off control |
|
Rewrite addresses to standard form
| all mail |
trivial-
rewrite(8) |
append_at_myorigin,
append_dot_mydomain,
swap_bangpath,
allow_percent_hack |
local_header_rewrite_clients,
remote_header_rewrite_domain |
|
Canonical address mapping |
all mail |
cleanup(8) |
canonical_maps
|
receive_override_options,
local_header_rewrite_clients,
remote_header_rewrite_domain |
|
Address masquerading | all mail |
cleanup(8) |
masquerade_domains
|
receive_override_options,
local_header_rewrite_clients,
remote_header_rewrite_domain |
|
Automatic BCC recipients |
new mail |
cleanup(8) |
always_bcc,
sender_bcc_maps,
recipient_bcc_maps |
receive_override_options
|
|
Virtual aliasing | all mail |
cleanup(8) |
virtual_alias_maps
|
receive_override_options |
|
Resolve address to destination
| all mail |
trivial-
rewrite(8) |
none | none |
|
Mail transport switch |
all mail |
trivial-
rewrite(8) |
transport_maps | none |
|
Relocated users table |
all mail |
trivial-
rewrite(8) |
relocated_maps | none |
|
Generic mapping table |
outgoing SMTP mail |
smtp(8) |
smtp_generic_maps
| none |
|
Local alias database |
local mail only |
local(8) |
alias_maps | none
|
|
Local per-user .forward files
| local mail only |
local(8) |
forward_path
| none |
|
Local catch-all address |
local mail only |
local(8) |
luser_relay |
none |
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