Welcome to Exchange Online IP addresses, your comprehensive guide to the IP addresses used by various Microsoft Office 365 services. As an IT administrator, it’s important to have a complete understanding of the IP addresses used by Office 365 services, in order to ensure secure and reliable communication for your organization. This webpage has been optimized for search engines to ensure that you can easily find the information you need.
With Exchange Online IP addresses, you’ll have access to an up-to-date list of IP addresses used by Exchange Online, Microsoft Teams, Skype for Business Online, SharePoint Online, and other Office 365 services. This information will enable you to configure firewalls, network settings, and other security measures to allow communication with Office 365 services, while also ensuring that your network remains secure.
Our goal is to provide IT administrators with the information they need to effectively manage Office 365 services in their organizations. We understand the importance of ensuring the safety and reliability of your network and communication channels. That’s why we have put together this comprehensive guide to Exchange Online IP addresses, to help you easily access and manage the information you need..
Finding a simple list of IP addresses used by services like Office 365 can be really challenging. Good news for you is I’ve already found them for you. I’ve got a copy of all the IPs (at the time I copied them) plus a link to the Microsoft page where they’re all listed. Enjoy…
Up to date list can be viewed here:
https://docs.microsoft.com/en-us/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide#exchange-online
Previously: https://technet.microsoft.com/en-us/library/dn163583(v=exchg.150).aspx
as of 2022-12-19 here is the list:
outlook.office.com, outlook.office365.com
13.107.6.152/31, 13.107.18.10/31, 13.107.128.0/22, 23.103.160.0/20, 40.96.0.0/13, 40.104.0.0/15, 52.96.0.0/14, 131.253.33.215/32, 132.245.0.0/16, 150.171.32.0/22, 204.79.197.215/32, 2603:1006::/40, 2603:1016::/36, 2603:1026::/36, 2603:1036::/36, 2603:1046::/36, 2603:1056::/36, 2620:1ec:4::152/128, 2620:1ec:4::153/128, 2620:1ec:c::10/128, 2620:1ec:c::11/128, 2620:1ec:d::10/128, 2620:1ec:d::11/128, 2620:1ec:8f0::/46, 2620:1ec:900::/46, 2620:1ec:a92::152/128, 2620:1ec:a92::153/128, 2a01:111:f400::/48
SMTP: smtp.office365.com
13.107.6.152/31, 13.107.18.10/31, 13.107.128.0/22, 23.103.160.0/20, 40.96.0.0/13, 40.104.0.0/15, 52.96.0.0/14, 131.253.33.215/32, 132.245.0.0/16, 150.171.32.0/22, 204.79.197.215/32, 2603:1006::/40, 2603:1016::/36, 2603:1026::/36, 2603:1036::/36, 2603:1046::/36, 2603:1056::/36, 2620:1ec:4::152/128, 2620:1ec:4::153/128, 2620:1ec:c::10/128, 2620:1ec:c::11/128, 2620:1ec:d::10/128, 2620:1ec:d::11/128, 2620:1ec:8f0::/46, 2620:1ec:900::/46, 2620:1ec:a92::152/128, 2620:1ec:a92::153/128, 2a01:111:f400::/48
IMAP: *.outlook.office.com, outlook.office365.com13.107.6.152/31, 13.107.18.10/31, 13.107.128.0/22, 23.103.160.0/20, 40.96.0.0/13, 40.104.0.0/15, 52.96.0.0/14, 131.253.33.215/32, 132.245.0.0/16, 150.171.32.0/22, 204.79.197.215/32, 2603:1006::/40, 2603:1016::/36, 2603:1026::/36, 2603:1036::/36, 2603:1046::/36, 2603:1056::/36, 2620:1ec:4::152/128, 2620:1ec:4::153/128, 2620:1ec:c::10/128, 2620:1ec:c::11/128, 2620:1ec:d::10/128, 2620:1ec:d::11/128, 2620:1ec:8f0::/46, 2620:1ec:900::/46, 2620:1ec:a92::152/128, 2620:1ec:a92::153/128, 2a01:111:f400::/48
POP3: *.outlook.office.com, outlook.office365.com13.107.6.152/31, 13.107.18.10/31, 13.107.128.0/22, 23.103.160.0/20, 40.96.0.0/13, 40.104.0.0/15, 52.96.0.0/14, 131.253.33.215/32, 132.245.0.0/16, 150.171.32.0/22, 204.79.197.215/32, 2603:1006::/40, 2603:1016::/36, 2603:1026::/36, 2603:1036::/36, 2603:1046::/36, 2603:1056::/36, 2620:1ec:4::152/128, 2620:1ec:4::153/128, 2620:1ec:c::10/128, 2620:1ec:c::11/128, 2620:1ec:d::10/128, 2620:1ec:d::11/128, 2620:1ec:8f0::/46, 2620:1ec:900::/46, 2620:1ec:a92::152/128, 2620:1ec:a92::153/128, 2a01:111:f400::/48
*.protection.outlook.com
40.92.0.0/15, 40.107.0.0/16, 52.100.0.0/14, 52.238.78.88/32, 104.47.0.0/17, 2a01:111:f403::/48
*.mail.protection.outlook.com
40.92.0.0/15, 40.107.0.0/16, 52.100.0.0/14, 104.47.0.0/17, 2a01:111:f400::/48, 2a01:111:f403::/48
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