How do I set up and verify Reverse DNS Lookup?
To ensure remote mail servers reliably accept SMTP connections from the Sendio ESP, first determine the public IP address associated with it and then ensure
Is reverse DNS (rDNS) important?
Yes. Many mail servers will not properly accept or process email coming from IP addresses that fail a reverse DNS lookup. Please review this FAQ
Why are SAV Requests and other outbound e-mail being deferred or rejected?
Many mail servers perform a Reverse DNS lookup on the originating IP address of an incoming SMTP connection. If the result of such lookup fails
How do I login/access the Console Interface?
Access to the Console interface can be done using a keyboard and monitor connected to the unit, or using an SSH Client such as “Putty”
How do I verify that my standby unit is fully functional?
Please contact Sendio Support. If we have SSH access there are checks we can perform to confirm the two cluster nodes are synchronizing.
If the active unit fails, will there be an automatic failover to the stand-by unit?
No. You must shut down and power off the active server, then follow the instructions below on the secondary node: Version Mar08SU 1209 and later:
How do I set up a cluster?
Version Mar08SU 1209 and later: Connect a crossover Ethernet cable between the two units, using their respective RED Ethernet ports on the back. Ensure that
Can both units of a cluster be active at the same time? Can they do load-balancing?
Version Mar08SU 1209 and later: Service portability, the ability to have certain services running on both nodes, is possible. While not true load balancing this
How often is data replicated between the clustered units?
The active unit replicates data to the passive unit continuously. In a properly operating cluster, data on the the standby node of a cluster is
Can the Sendio ESP “Push” a backup to a location on my Network?
Version Mar08SU 1209 and later: Backups can be pushed to a Windows/Samba share or USB drive. Navigate to Console Interface > Backup/Maintenance and arrow down to the