> Now the question is: What can we do if the other MTA has a longer > failure then our queue timeout?
Well, that's what we call a "queue timeout." :) Seriously, that's why you set your queue lifetime for gatewayed domains to a much longer timeout than the lifetime of general outbound mail. Since you can't do this with just IMail, I'd recommend using MS SMTP for gatewayed domains (you can run it on the same box as IMail, as you know). Cool thing about using MS SMTP is that not only can each virtual server have its own queue lifetime, but gatewayed domains can use DNS-based routing -- rather than the implicit single smarthost of the IMail architecture -- giving you automatic failover using the MX algorithm. You can also use ORF for address validation, etc. > My idea: Our Server should monitor the others MTA SMTP-Port and if > there is a long outage should be called a script that does replace > the IP in the hosts file on our Imail-server to another IP for > another MTA. Pretty complex. I think it'd be more worthwhile to implement a separate queue for gatewayed domains, since that's obviously a separate service provided by your company, with a separate SLA. Another option would be to get LDAP access to the remote domain's userbase and use ldap2aliases (see my sig) to sync the userbase into an IMail virtual host. If you can get the userbase imported locally, you defend against dictionary attacks, which is always a good thing. And since IMail always accepts mail to a local virtual host, you don't need HOSTS to manage your relay permissions, and DNS failover can be used instead. --Sandy ------------------------------------ Sanford Whiteman, Chief Technologist Broadleaf Systems, a division of Cypress Integrated Systems, Inc. e-mail: [EMAIL PROTECTED] SpamAssassin plugs into Declude! http://www.imprimia.com/products/software/freeutils/SPAMC32/download/release/ Defuse Dictionary Attacks: Turn Exchange or IMail mailboxes into IMail Aliases! http://www.imprimia.com/products/software/freeutils/exchange2aliases/download/release/ http://www.imprimia.com/products/software/freeutils/ldap2aliases/download/release/ To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
