Greetings, all, and Happy New Year...
I have the following situation, and I'd appreciate some feedback and suggestions.
Currently, I have ASG v6 (2rosenthals.com) in one office where our mail server (CommuniGate Pro, running under OS/2) is located. I have a second office 300 miles away, running ASG v7 (secmgr-va.2rosenthals.com).
Our mail server hosts about a dozen domains.
We have used DynDNS for backup MX services in the past. I'd like to handle backup MX through our second office. Additionally, we have several clients for whom I would like to handle backup MX, as well.
I have used per-domain profiles in v7 to configure for simple greylisting only, and for our hosted domains, I have used the public IP of our v6 box in front of our mail server. For our other clients, I have used the public IP's of their v6 or v7 boxes (all of our clients are running Astaro gateways).
MX records look like this:
(ours)
2rosenthals.com TTL 43200 10 2rosenthals.com
2rosenthals.com TTL 43200 20 secmgr-va.2rosenthals.com
2rosenthals.com TTL 43200 50 2rosenthals.com
(others - hosted with us)
domainx.com TTL 43200 10 2rosenthals.com
domainx.com TTL 43200 20 secmgr-va.2rosenthals.com
domainx.com TTL 43200 50 2rosenthals.com
(others - not hosted with us)
domainy.com TTL 43200 10 asg.domainy.com
domainy.com TTL 43200 20 secmgr-va.2rosenthals.com
domainy.com TTL 43200 50 asg.domainy.com
What I'm seeing with domains not hosted by us are 550 errors when things are hitting our box (as greylisting is turned on on the lowest MX, these things are bouncing to us fairly frequently). Is there something I'm missing in v7 to turn off recipient checking which may be the cause of the 550 failures?
Any advice would be greatly appreciated, whether related to backup MX in general or the v7 setup.
TIA
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