Mimecast Data Centers and URLs

Document created by user.oxriBaJeN4 Employee on Sep 7, 2015Last modified by user.oxriBaJeN4 Employee on May 30, 2017
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Mimecast operates in multiple regions, with each having its own set of IP addresses, network ranges, and URLs for Mimecast applications, Mimecast Services, and Mimecast APIs. In order to ensure users are directed to the correct regional data centers, it is important your account uses the correct details.

Your region may not be where you are physically located. It is where your data is located. For example, a company with offices in Europe may host their data in North America.

To prevent disruption to your service, it is important to ensure that you:

  • Allow connections to the appropriate ports from the entire Mimecast IP Ranges for your region.
  • That they are mapped through to the correct destination on your network.

 

When a user enters their email address into the Administration Console or an API client (Mimecast for Outlook, Mimecast for Mac, Mimecast Mobile) the global resource is used to determine where the user's parent Mimecast account is hosted, and provides a 302 redirect to the correct location. For redundancy, these endpoints are available in all Mimecast datacenters. Consequently it is possible that you may observe outbound HTTPS traffic from your network to an IP address outside of your Mimecast region. To prevent disruption to your service, ensure outbound HTTPS connections are allowed to these locations. These requests are for authentication only, no email is transmitted using this method.

 

The sections below detail the Mimecast service network ranges. These details can be used to ensure that the organization's infrastructure accepts connections to and from the Mimecast service.

 

If you have issues logging onto a URL, ensure you are using one of the supported browsers before contacting Mimecast Support. Read the Mimecast Browser Support Matrix page for more detail.

*You must ensure that inbound connections are allowed access to the ports for the networks listed, and that they are mapped to the correct destination on your network.
**The External Delivery networks cover the range of IP addresses that may be used for delivery to external recipients.
***The Mimecast Secure Messaging Portal URL should only be used by Mimecast customers. Non-Mimecast customers can access the portal by clicking the link in the notification message.

Global Application URL

 

 

Data Center IP and Regional URL

When entering IP ranges into Office 365, read the Adding Network Ranges to Office 365 page.

Europe Region

 

IP Addresses and Network Ranges

 

NetworkIP Address Range
NetmaskInbound Connections *External Delivery **
195.130.217.0/24195.130.217.1to195.130.217.254255.255.255.0
91.220.42.0/2491.220.42.1to91.220.42.254255.255.255.0
185.58.84.0/22

185.58.84.1

to

185.58.87.254

255.255.252.0
146.101.78.0/24146.101.78.1to146.101.78.254255.255.255.0
207.82.80.0/24207.82.80.1to207.82.80.254255.255.255.0


Application URLs

 

 

The Administration Console in Europe regions uses different IP ranges for inbound and outbound requests:

 

NetworkIP Address
Netmask
193.118.78.128/26193.118.78.129to193.118.78.190255.255.255.192
205.217.25.128/26205.217.25.129to205.217.25.190255.255.255.192

 

North America Region

 

IP Addresses and Network Ranges

 

NetworkIP Address Range
NetmaskInbound Connections *External Delivery **
207.211.31.0/25207.211.31.1to207.211.31.127255.255.255.128
207.211.30.0/24207.211.30.1to207.211.30.254255.255.255.0

205.139.110.0/24

205.139.110.1to205.139.110.254255.255.255.0

205.139.111.0/24

205.139.111.1to205.139.111.254255.255.255.0
216.205.24.0/24216.205.24.1to216.205.24.254255.255.255.0
63.128.21.0/2463.128.21.1to63.128.21.254255.255.255.0
207.211.41.113/32207.211.41.113to207.211.41.113255.255.255.255

 

Application URLs

 

 

South Africa Region

 

IP Addresses and Network Ranges

 

NetworkIP Address Range
NetmaskInbound Connections *External Delivery **
41.74.192.0/2041.74.192.1to41.74.207.254255.255.240.0

 

Application URLs

 

 

Australia Region

 

IP Addresses and Network Ranges

 

NetworkIP Address Range
NetmaskInbound Connections *External Delivery **
103.13.69.0/24103.13.69.1to103.13.69.254255.255.255.0
124.47.150.0/24124.47.150.1to124.47.150.254255.255.255.0
124.47.189.0/24124.47.189.1to124.47.189.254255.255.255.0
180.189.28.0/24180.189.28.1to180.189.28.254255.255.255.0

 

Application URLs

 

 

Offshore Region

 

IP Addresses and Network Ranges

 

NetworkIP Address Range
NetmaskInbound Connections *External Delivery **
213.167.75.0/24213.167.75.1to213.167.75.254255.255.255.0
213.167.81.0/24213.167.81.1to213.167.81.254255.255.255.0

 

Application URLs

 

 

Global Application Resources

 

Protocol Connection Ports

 

The following list shows the most common connection types and the general ports used for each protocol. Also included are the standard connection ports for Mimecast Applications:

 

ProtocolDefault PortUsage
Simple Mail Transfer Protocol (SMTP)25Send Connectors, SMTP Journaling, user application SMTP Services.
Post Office Protocol (POP3)110POP Journaling, user application POP Services.
Post Office Protocol Secure (POP3S)995
Lightweight Directory Access Protocol (LDAP)389Directory Synchronization
Lightweight Directory Access Protocol Secure (LDAPS)636
Hyper Text Transfer Protocol (HTTP)80Downloading Strip and Link attachments, Mimecast Synchronization Engine (MSE) with Office 365 hybrid environments.
Hyper Text Transfer Protocol (HTTPS)443Access to the Administration Console, Mimecast Personal Portal, Mimecast Mobile, Mimecast for Outlook and Mimecast Synchronization Engine.

 

Mimecast Website

 

To ensure that your users can always log in to Mimecast, it is recommended to permit traffic to the Mimecast website IP ranges.

 

LocationIP AddressCIDRNetmask
Data Center 1146.101.202.134/32255.255.255.255
146.101.202.135/32255.255.255.255
Data Center 281.145.134.178/32255.255.255.255
81.145.134.173/32255.255.255.255
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