John Arthur wrote: > > WOW Talk about doing it the hardway........ > > I think you need to take a serious look at LDAP mail routing in > Sendmail. > > I recently setup LDap routing on a businesses front end MX mail > servers (Sendmail) and their rejected bounces went from 3000 a day > down to 5. > > With LDAP mail routing all mail is rejected at the MX server unless > it's for a legitimate user and the best part is once you have LDAP > configured it's trivial to maintain. > > Oh! and LDAP is case insensitive. > > John I agree. Implementing LDAP is by far a better solution. In fact, I currently use LDAP at my end to populate my access file through an hourly cronjob. This is by design. I chose not to configure my MTA to query my LDAP server for each inbound e-mail. It queries a local database which contains the same information. FWIW: I posted the access table example above for the benefit of the OP to answer his question. Yes, what I showed is the "hardway" (as noted in a previous reply), but my goal was to give him a basic example of what will be required to configure sendmail to reject unknown recipients without issuing a bounce (hopefully in a test environment). How the OP ultimately chooses to implement this in the future will be based on his current infrastructure and requirements - which he has not specified. Hopefully, he can implement an LDAP solution. If not... Steve Cowles
