Microsoft Outlook Application

The following page provides details on domains, networks, IPs, hosting services, and content delivery networks used by Microsoft Outlook.

What is Microsoft Outlook?

Microsoft Outlook - Mail
Outlook.com is a web-based suite of webmail, contacts, tasks, and calendaring services from Microsoft.

Microsoft Outlook Domains

Primary Domains

outlook.office365.com
substrate.office.com
outlook.office.com
outlook.com
outlook.cloud.microsoft
r4.res.office365.com
ms-acdc.office.com
and 47 more

Platform Domains

Platform	Sample Domain	Details
Akamai	{hidden}.office365.com.edgekey.net	and 3 more
Azure Front Door	{hidden}.msedge.net
Microsoft Azure	{hidden}.trafficmanager.net	and 2 more

Core Networks

Applications are sometimes deployed on partner networks, parent company networks, or regional hosting providers. The following is a sample of Microsoft Outlook IP addresses deployed on this type of network.

Network	IP	PoP	Category	Location
Microsoft	13.107.244.1	Core Network	Business	United States
Microsoft	20.35.192.130	Core Network	Business	United States
Microsoft	20.35.193.2	Core Network	Business	United States
Microsoft	20.35.193.34	Core Network	Business	United States
Microsoft	20.35.193.66	Core Network	Business	United States
... and and 13545 more more

Hosting

SaaS	Sample IP	# of IPs
Microsoft Azure	52.123.173.66	766
21Vianet Blue Cloud	139.219.17.16	38
DigitalOcean	64.225.91.235	1

To scale its compute capacity and optimize resources, Microsoft Outlook leverages a multi-cloud architecture.

Content Delivery Networks - CDNs

Summary

CDN	Sample IP	# of IPs
Akamai	218.231.251.32	2141
Azure Front Door	204.79.197.234	236

To get information to end users more quickly, many apps - including Microsoft Outlook - use Content Delivery Networks (CDNs).

Anycast

CDN	Sample IP	# of IPs
Azure Front Door	204.79.197.234	236

Network Map

PoP Locations

CDN	Location	PoP	Network	# of IPs
Akamai	Prague	Czechia	Akamai	6
Akamai	Amsterdam	Netherlands	Akamai	15
Akamai	Vienna	Austria	Akamai	5
Akamai	Athens	Greece	Akamai	4
Akamai	Haarlem	Netherlands	Akamai	5
Akamai	Lisbon	Portugal	Akamai	5
Akamai	London	United Kingdom	Akamai	35
Akamai	Fujairah	United Arab Emirates	Akamai	3
Akamai	Johannesburg	South Africa	Akamai	33
Akamai	Frankfurt	Germany	Akamai	123
Akamai	Sao Paulo	Brazil	Akamai	15
Akamai	Toronto	Canada	Akamai	16
Akamai	Curitiba	Brazil	Akamai	2
Akamai	Cape Town	South Africa	Akamai	25
Akamai	Hamburg	Germany	Akamai	4
Akamai	Hong Kong	Hong Kong	Akamai	25
Akamai	Paris	France	Akamai	22
Akamai	Dusseldorf	Germany	Akamai	15
Akamai	Singapore	Singapore	Akamai	138
Akamai	Mombasa	Kenya	Akamai	8
Akamai	Madrid	Spain	Akamai	8
Akamai	Stockholm	Sweden	Akamai	20
Akamai	Ashburn	United States	Akamai	32
Akamai	Miami	United States	Akamai	15
Akamai	Durban	South Africa	Akamai	5
Akamai	Schiphol	Netherlands	Akamai	11
Akamai	Milan	Italy	Akamai	179
Akamai	Bogota	Colombia	Akamai	29
Akamai	Palermo	Italy	Akamai	16
Akamai	Porto Alegre	Brazil	Akamai	2
Akamai	Barcelona	Spain	Akamai	4
Akamai	Fortaleza	Brazil	Akamai	4
Akamai	Mount Prospect	United States	Akamai	91
Akamai	Glattbrugg	Switzerland	Akamai	3
Akamai	Atlanta	United States	Akamai	4
Akamai	Los Angeles	United States	Akamai	73
Akamai	Sydney	Australia	Akamai	195
Akamai	Bangkok	Thailand	Akamai	3
Akamai	San Jose	United States	Akamai	89
Akamai	Honolulu	United States	Akamai	2
Akamai	Sunshine Coast	Australia	Akamai	3
Akamai	San Diego	United States	Akamai	2
Akamai	Moscow	Russia	Akamai	2
Akamai	Irving	United States	Akamai	24
Akamai	Warsaw	Poland	Akamai	8
Akamai	Dallas	United States	Akamai	71
Akamai	Munich	Germany	Akamai	5
Akamai	Brussels	Belgium	Akamai	2
Akamai	New York	United States	Akamai	10
Akamai	Melbourne	Australia	Akamai	70
Akamai	Montreal	Canada	Akamai	3
Akamai	Secaucus	United States	Akamai	33
Akamai	Santa Clara	United States	Akamai	77
Akamai	Chicago	United States	Akamai	142
Akamai	Brisbane	Australia	Akamai	31
Akamai	Mumbai	India	Akamai	32
Akamai	Seattle	United States	Akamai	19
Akamai	Wellington	New Zealand	Akamai	2
Akamai	Marseille	France	Akamai	7
Akamai	Coimbatore	India	Akamai	2
Akamai	Bhopal	India	Akamai	4
Akamai	Tokyo	Japan	Akamai	22
Akamai	Adelaide	Australia	Akamai	4
Akamai	Lithia Springs	United States	Akamai	6
Akamai	Berlin	Germany	Akamai	6
Akamai	Hyderabad	India	Akamai	5
Akamai	Cyberjaya	Malaysia	Akamai	3
Akamai	Santiago de Queretaro	Mexico	Akamai	19
Akamai	New Delhi	India	Akamai	7
Akamai	Buenos Aires	Argentina	Akamai	2
Akamai	Jodhpur	India	Akamai	2
Akamai	Auckland	New Zealand	Akamai	9
Akamai	Tempe	United States	Akamai	2
Akamai	Chennai	India	Akamai	8
Akamai	Santiago	Chile	Akamai	2
Akamai	Perth	Australia	Akamai	19
Akamai	San Pedro Sula	Honduras	Akamai	2
Akamai	Rome	Italy	Akamai	23
Akamai	Dublin	Ireland	Akamai	1
Akamai	Houston	United States	Akamai	4
Akamai	Bucharest	Romania	Akamai	2
Akamai	Dubai	United Arab Emirates	Akamai	2
Akamai	Oslo	Norway	Akamai	2
Akamai	Helsinki	Finland	Akamai	1
Akamai	Nonthaburi	Thailand	Akamai	1
Akamai	Lima	Peru	Akamai	2
Akamai	Quezon City	Philippines	Akamai	2
Akamai	Johannesburg	South Africa	Liquid	4
Akamai	Dar es Salaam	Tanzania	Seacom	4
Akamai	Hong Kong	Hong Kong	Telstra	2
Akamai	Singapore	Singapore	Telstra	2
Akamai	Brisbane	Australia	Telstra	4
Akamai	Nagpur	India	Jio	1
Akamai	Mumbai	India	Jio	2
Akamai	Ahmedabad	India	Jio	2
Akamai	Copenhagen	Denmark	Arelion	3
Akamai	Accra	Ghana	Vodafone	2
Akamai	Vilnius	Lithuania	Bite Lietuva	2
Akamai	Dusseldorf	Germany	1&1 Versatel	2
Akamai	Luanda	Angola	Angola Cables	2
Akamai	Pretoria	South Africa	Telkom SA	1
Akamai	Hanoi	Vietnam	VNPT	2
Akamai	Perth	Australia	Vocus	4
Akamai	Melbourne	Australia	Vocus	2
Akamai	Sydney	Australia	Vocus	6
Akamai	Ulaanbaatar	Mongolia	Unitel	2
Akamai	Melbourne	Australia	Aussie Broadband	2
Akamai	Brisbane	Australia	Aussie Broadband	2
Akamai	Rome	Italy	Wind Tre	1
Akamai	Milan	Italy	Wind Tre	2
Akamai	Montreal	Canada	Bell Canada	6
Akamai	San Jose	Costa Rica	Ufinet	2
Akamai	Fort-de-France	Martinique	Orange	2
Akamai	Palermo	Italy	Sparkle	5
Akamai	Sao Paulo	Brazil	Claro	2
Akamai	Taichung	Taiwan	Chunghwa Telecom	1
Akamai	Taipei	Taiwan	Chunghwa Telecom	2
Akamai	Vancouver	Canada	Telus	2

Other Locations

CDN	Location	PoP	Network	# of IPs
Akamai	Core Network	Greece	Sparkle	2
Akamai	Core Network	Italy	Sparkle	13
Akamai	Core Network	India	Jio	18
Akamai	Core Network	Canada	Videotron	3
Akamai	Core Network	Sweden	Arelion	1
Akamai	Core Network	Austria	Three	2
Akamai	Core Network	South Africa	Vodacom	2
Akamai	Core Network	Poland	Akamai	2
Akamai	Core Network	Pakistan	ASN AS38193	1
Akamai	Core Network	Hungary	Deutsche Telekom	2
Akamai	Core Network	Switzerland	Swisscom	2
Akamai	Core Network	South Africa	Dimension Data	6
Akamai	Core Network	Brazil	Claro	2
Akamai	Core Network	Australia	TPG Telecom	8
Akamai	Core Network	New Zealand	One NZ	3