On 12/8/2011 6:45 AM, James Day wrote: > Hello, > > First post to the list, I would really appreciate any help/advice. > > In my current setup I act as a Spam and Virus filter for several domains. > Mail is then relayed to their local Exchange servers once it has been scanned. > > In the event that their Exchange server is down and they require emergency > access to their emails I have configured virtual_alias_maps as below: > > user@domain user@domain,user@otherdomain > > This way the original mail is still cached in the queue for delivery to > Exchange and a copy is sent to the same user at anotherdomain (an > IMAP/Webmail server). >
Yes, that's the correct procedure. > My question is: Rather than setting up each user and their alias individually > can I use a wildcard to accept for anyuser and forward to the same username > on the other domain. Using wildcards will cause postfix to accept mail for undeliverable recipients, so that's not a good solution. Use a script to generate the mappings you need. The size of the resulting file is not a concern, hash maps can handle millions of entries efficiently. -- Noel Jones
