Proofpoint Connection Settings


The connection settings to use will depend on your location and which URL you use to login to Proofpoint. 


A copy of this information is available on the Proofpoint Knowledge Base (requires login to access) https://help.proofpoint.com/Proofpoint_Essentials/Administrator_Topics/000_gettingstarted/020_connectiondetails



URLhttps://us1.proofpointessentials.com/https://eu1.proofpointessentials.com/
LocationUS DatacenterEU Datacenter
MX Recordsmx1-us1.ppe-hosted.com
mx2-us1.ppe-hosted.com
mx1-eu1.ppe-hosted.com
mx2-eu1.ppe-hosted.com
Smarthostoutbound-us1.ppe-hosted.comoutbound-eu1.ppe-hosted.com
IP Addresses 
port 25 for SMTP
port 389/636 for LDAP/LDAPS

67.231.152.0/24

67.231.153.0/24

67.231.154.0/24

67.231.155.0/24

67.231.156.0/24

67.231.144.0/24

67.231.145.0/24

67.231.146.0/24

67.231.147.0/24

67.231.148.0/24

148.163.128.0/19

91.209.104.0/24

91.207.212.0/24

91.207.213.0/24

62.209.50.0/24

62.209.51.0/24

185.132.180.0/24

185.132.181.0/24

185.132.182.0/24

185.132.183.0/24

185.183.28.0/22



1. Routing inbound email from the Internet to Proofpoint


Replace your current MX records with the Proofpoint MX records.


2. Routing outbound email Proofpoint


Configure your on-premise mail server, Office 365 or G-Suite to route outbound email via Proofpoint using the Smarthost in the above table.