Greetings, Matt Saladna! > I feared that. Are there any suitable sendmail wrappers that would provide > equivalent functionality?
I didn't quite get your setup, but if these "virtual systems" are isolated and send mail via some means to the main mail exchange, use something like ssmtp on premises. It will do most of the leg work without much of the full server overhead. > - Matt > > > > On 12/22/2018 7:47 PM, Viktor Dukhovni wrote: > > > On Sat, Dec 22, 2018 at 07:32:37PM -0600, Matt Saladna wrote: > > > I have an odd setup in which each base directory contains a complete > virtual filesystem with potentially overlapping usernames (UIDs are > unique). domain1.com could consist of system user user1 (UID: 500), > user2 (UID: 501). domain2.com could consist of user1 (UID: 502), user12 > (UID: 503), and so on. Any mail generated from shell that depends upon > Postfix to append $myorigin will append the server name instead of the > local virtual domain. > Setting $myhostname and $append_at_myorigin backfires with this setup, > because that happens after pickup in trivial-rewrite that operates > outside the virtual filesystem, so the real server name is always used. > Mapping these users via /etc/aliases won't work either since usernames > are not guaranteed to be unique across accounts. > Is there a way to either: > - Log the UID of pickup and rewrite sender based upon it > - Convert the sender into a FQDN before pickup, for example if mail > generates via cron > > > No, for this you also a separate Postfix instance for each logical > container. By the time the mail leaves the container it is too > late. > > -- With best regards, Andrey Repin Monday, December 24, 2018 1:33:06 Sorry for my terrible english...
