Inbound

Inbound domains

Backup-MX / forwarder. Port 25 accepts mail only for the domains listed here and hands it to their upstream. No mailboxes.

01

Add a domain

Mail is not accepted until an upstream host is saved on the domain's page. Adding and deleting domains is for a global administrator; a domain administrator sees the list without this form and without Delete.

02

Domains

Spam filter on ยท 2 domains
DomainDNSUpstreamRecipientsTLS to upstream
lists.example.orgMXmx.internal:254 addressesrequiredOpenDelete
acme.ioMX10.0.4.12:2525any addressopportunisticOpenDelete
The MX tag is green when at least one MX of the domain points at this server.