Am 26.09.2014 um 11:50 schrieb Mike Cardwell: > I have some Exim configuration which allows me to have automatically > expiring email addresses. It accepts mail for any addresses matching > the format: > > yyyy-mm...@tmp.grepular.com > > But only if the YYYY-MM-DD matches a date which is today or in the > future. For example, "2014-09...@tmp.grepular.com" will accept mail > up until the end of this month and will reject mail from that point > onwards. > > What would be the best way of replicating this functionality in > Postfix? If it would involve calling out to an external script, I am ok > with writing such a thing, but if it can be done "natively" inside > Postfix, that would be preferable. > > If anyone cares, here is how I did it in Exim: > https://grepular.com/Automatically_Expiring_Email_Addresses
this maybe best suited with mysql tables because you could have a catch-all on the MDA/LMTP and "show" postfix the needed RCPT table based on query see example below and keep in mind that you are very flexible with such queries (combined with mysql-views and so on) and the "dbma_recipients" table below is indeed a complex view over 5 tables postfix don't need to know about http://www.postfix.org/MYSQL_README.html _____________________________________________________ main.cf: local_recipient_maps = mysql:/etc/postfix/mysql-recipients.cf [root@srv-rhsoft:~]$ cat /etc/postfix/mysql-recipients.cf user = mail password = *********** dbname = mail hosts = unix:/var/lib/mysql/mysql.sock inet:127.0.0.1:3307 query = select alias from dbma_recipients where alias='%s' _____________________________________________________ you can even play such games in a shared infrastructure the example below is to bypass the MX (spamfilter) from internal webservers select REPLACE(transport,'dbmail-lmtp:127.0.0.1:24','smtp:[192.168.196.20]:25') as transport from dbma_transports where mydestination='%s' or mydestination='%d' order by transport desc limit 1;
