Outbound Transport Server IP List

Description

Mailprotector uses twenty servers to send outbound email, also called otransports. Occasionally, an IP address can be blacklisted as a spam source or a user complaint will damage the IP addresses' reputation. The list below is the IP address for each of the twenty servers.

An IP address can be taken out of service by DevOps if a reputation problem is identified. Once the reputation problem has been resolved, DevOps will place the IP address back into service.

Transport Server IP Addresses:

otransport-1 52.1.23.3
otransport-2 52.1.140.110
otransport-3 52.1.182.179
otransport-4 54.84.14.167
otransport-5 54.84.246.51
otransport-6 54.152.160.215
otransport-7 52.22.79.245
otransport-8 52.20.59.36
otransport-9 52.0.21.132
otransport-10 52.22.72.116
otransport-11 52.3.94.45
otransport-12 52.1.62.31
otransport-13 54.208.239.9
otransport-14 54.172.220.45
otransport-15 18.204.234.187
otransport-16 18.232.37.98
otransport-17 52.1.21.150
otransport-18 52.5.166.138
otransport-19 54.164.123.4
otransport-20 54.164.131.225


Transport Server Host Names:

Outbound transport servers have a hostname syntax as expressed below:

otransport-X.us-east-1.mailprotector.net

NOTE: will be replaced by otransport-X.us-east-1.emailservice.io - release date TBD

Transport Server IP List (for easy copy & paste)

52.1.23.3, 52.1.140.110, 52.1.182.179, 54.84.14.167, 54.84.246.51, 54.152.160.215, 52.22.79.245, 52.20.59.36, 52.0.21.132, 52.22.72.116, 52.3.94.45, 52.1.62.31, 54.208.239.9, 54.172220.45, 18.204.234187, 18.232.37.98, 52.1.21.150, 52.5.166.138, 54.164.123.4, 54.164.131.225

Have more questions? Submit a request

Comments