Hi! This is mail-backup.mdmck10.xyz. There is an MTA here.
Note that emails are only sent from the following IPs for this specific MTA:
- 23.148.232.123
- 2602:fa9b:219::1
If you have received an email claiming to be from this MTA from any IP other than the ones mentioned above, please report it to abuse@mdmck10.xyz.