Hi,
We have two ADSL-accounts from two different ADSL-providers.
I want to configure the two different SMTP-mailserver form those providers as relay hosts in my SMTP configuration for failover reasons: when one of the ADSL-connections in failing, Domino should use the other SMTP Relay host, for all mail.
Is this possible? And how?
Subject: Second SMTP Relayhost for failover
I find it an interesting question. I see you didn’t get any answers yet so I’ll just try to give one. Regretfully I have no experience of my own with this and no possibilities to test it, so I have no idea if it works.
Create smtp connection documents as in the old R4 way, so no relay host in the configuration document. Make them both for * (so everything would match it) but give one a higher routing cost.
This could work, but I’ve really no idea if it does. Please let me know the result or whatever you did to solve the problem.
Subject: Second SMTP Relayhost for failover
To do this use a configuration document (not a connection document) for routing internet mail. Then goto Router/SMTP panel-> Basics panel and in the relay hosts field add your two different smtp relays separated by a semicolon e.g. smtp1.isp1.com;smtp2.isp2.com
Subject: RE: Second SMTP Relayhost for failover
Thanks for your reply.
But this not work all the time. I allready used the SMTP Configuration Document, Basics tab to use a SMTP Relay Host. I added a second: smtp1.isp1.com; smtp2.isp2.com
The SMTP router allways uses the first relay host in this list. For when using the ADSL-connection for the second provider (isp2) I get a “Relaying not allowed” or “Relay access denied” error. I know what this means: the server is sending a message to a SMTP-server by using an other’s ADSL-connection.
So this option is not the solution.
Subject: RE: Second SMTP Relayhost for failover
That sounds like your settings on a higher level are wrong. I suppose you have a router which allows to connect two WAN interfaces. You’ll have to tell the router that for smtp.isp1.com it always has to use WAN1 and for smtp.isp2.com it always uses WAN2. There’s no way Domino can do that for you.