Offsite Zimbra MTA in Multi-server Environment
Posted: Tue Jan 16, 2018 12:45 am
I have a multi-server Zimbra environment.
I'd like to spin up a geo and network diverse Zimbra installation to more or less be a backup MX.
I want more than your standard dumb MX (which is what I see in all of the Zimbra backup MX guides, posts, etc.). I want it to authenticate and hold the incoming mail until the appropriate mailbox server is online, then deliver it. No point in holding mail for accounts that I don't have.
I need to specify an authentication server, which is a mailbox server. Obviously, I can't point at one of the existing mailbox servers as the point is to be diverse from that environment. I'd need a new one. I don't want to have provisioned mailboxes on that server. It's just supposed to be used for off-site LDAP replication and MX.
How can I best accomplish what I'm after?
I'd like to spin up a geo and network diverse Zimbra installation to more or less be a backup MX.
I want more than your standard dumb MX (which is what I see in all of the Zimbra backup MX guides, posts, etc.). I want it to authenticate and hold the incoming mail until the appropriate mailbox server is online, then deliver it. No point in holding mail for accounts that I don't have.
I need to specify an authentication server, which is a mailbox server. Obviously, I can't point at one of the existing mailbox servers as the point is to be diverse from that environment. I'd need a new one. I don't want to have provisioned mailboxes on that server. It's just supposed to be used for off-site LDAP replication and MX.
How can I best accomplish what I'm after?