On 2013.10.21 17.54, Noel Jones wrote: > On 10/21/2013 3:53 PM, btb wrote: >> i have a scenario in which certain email is sent using envelope >> senders that contain host names that are known only on the local >> lan/network, and unknown on the internet. most mail expressing that >> characteristic stays local, but occasionally, some is legitimately >> destined for the public internet. to that end, with such mail, i'd >> like to change the sender domain part to @example.com, but only if >> the recipient domain part does not end in example.com [both the >> sender and recipient domain part may be @example.com, >> @foo.example.com, @bar.foo.example.com, etc]. >> >> what is the right method for doing this? given >> ADDRESS_REWRITING_README, it seem to possibly be a fit for either >> masquerade_domains or smtp_generic_maps, but i'm not certain, and >> i'm not sure how to apply selectively. >> >> -ben > > smtp_generic_maps will do that nicely. Add the rewriting on the > "smtp" outgoing transport in master.cf to limit rewriting to > non-local recipient domains only. > > #master.cf > # find the existing "smtp unix ... smtp" transport and add to it: > -o smtp_generic_maps=regexp:/etc/postfix/generic.regexp > > > # generic.regexp > /^(.*)@some\.fantasy\.invalid$/ $1...@example.com
thanks. wrt limit rewriting to non-local recipient domains only, by "stays local", i meant local in terms of the local network, not in terms of postfix. postfix is responsible for only systems.example.com: virtual_mailbox_domains = ldap:$table_directory/virtual_mailbox_domains.cf >postmap -q 'systems.example.com' ldap:./tables/virtual_mailbox_domains.cf systems.example.com while everything else leaves via smtp and is delivered via mx records - some of which is for other recipients ending in @example.com or .example.com [delivered to other hosts on the local network], and the rest of course out onto the internet. how can i apply smtp_generic_maps selectively, for only certain recipient domains [ones not ending in @example.com or .example.com] leaving via smtp - the goal being to rewrite the sender to @example.com for mail destined for the internet? -ben
