Path addresses are rewritten according to the following
rules:
- If the local part of a mailbox name includes a percent sign (%)
and the domain of the mailbox is the host system, SMTP rewrites the
address, treating the portion of the local part to the right of the
percent sign (%) as the real destination host. For example, the path
address:
John%yourhost@ourhost.our.edu
is rewritten by
SMTP running at ourhost.our.edu as:
John@yourhost
- Path addresses with source routes are accepted and rewritten to
remove the domain name of the host system. For example, the path address:
@ourhost.our.edu,@next.host.edu
:John@yourhost
is rewritten by SMTP running at ourhost.our.edu
as:
@next.host.edu:John@yourhost
SMTP also optimizes a
path address. For example,
@some.host.edu,@ourhost.our.edu,
@next.host.edu:John@yourhost
is rewritten by SMTP running at
ourhost.our.edu as:
@next.host.edu:John@yourhost