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azure · Dynamics365ForMarketingEmail

Microsoft Azure uses 39 prefixes for Dynamics365ForMarketingEmail.

Last updated 5 Nov 2026 from Microsoft Azure’s own list (file dated 2026-11-02 (change 425))

Short answer

Microsoft Azure lists these prefixes under “Dynamics365ForMarketingEmail”. Microsoft publishes Azure’s ranges weekly as Service Tags: named groups such as AzureCloud, Storage, Sql or AzureFrontDoor.Frontend, each a list of prefixes. We import the global (non-regional) tags.

IPv4 prefixes39
IPv6 prefixes0
Regions in the first 100—
Fetched by peekip5 Nov 2026

Prefixes

PrefixRegion / locationService
102.133.251.96/27—Dynamics365ForMarketingEmail
104.211.80.0/24—Dynamics365ForMarketingEmail
13.66.138.128/25—Dynamics365ForMarketingEmail
13.69.226.128/25—Dynamics365ForMarketingEmail
13.71.171.0/24—Dynamics365ForMarketingEmail
13.74.106.128/25—Dynamics365ForMarketingEmail
13.75.35.0/24—Dynamics365ForMarketingEmail
13.77.51.0/24—Dynamics365ForMarketingEmail
13.78.107.0/24—Dynamics365ForMarketingEmail
145.191.155.192/27—Dynamics365ForMarketingEmail
172.186.142.160/27—Dynamics365ForMarketingEmail
172.192.223.224/27—Dynamics365ForMarketingEmail
172.196.116.96/27—Dynamics365ForMarketingEmail
191.233.202.0/24—Dynamics365ForMarketingEmail
4.166.33.32/27—Dynamics365ForMarketingEmail
4.219.25.224/27—Dynamics365ForMarketingEmail
4.230.126.192/27—Dynamics365ForMarketingEmail
4.243.180.160/27—Dynamics365ForMarketingEmail
4.247.39.32/27—Dynamics365ForMarketingEmail
40.120.64.224/27—Dynamics365ForMarketingEmail
40.78.242.0/25—Dynamics365ForMarketingEmail
40.79.138.192/26—Dynamics365ForMarketingEmail
48.201.168.32/27—Dynamics365ForMarketingEmail
48.211.37.0/26—Dynamics365ForMarketingEmail
51.107.129.64/27—Dynamics365ForMarketingEmail
51.140.147.0/24—Dynamics365ForMarketingEmail
51.56.214.0/27—Dynamics365ForMarketingEmail
57.155.153.0/27—Dynamics365ForMarketingEmail
57.160.28.160/27—Dynamics365ForMarketingEmail
57.168.255.32/27—Dynamics365ForMarketingEmail
65.52.252.128/27—Dynamics365ForMarketingEmail
74.146.24.32/27—Dynamics365ForMarketingEmail
74.150.12.64/27—Dynamics365ForMarketingEmail
74.153.1.160/27—Dynamics365ForMarketingEmail
74.160.11.224/27—Dynamics365ForMarketingEmail
74.240.14.64/27—Dynamics365ForMarketingEmail
9.235.245.32/27—Dynamics365ForMarketingEmail
98.66.37.192/27—Dynamics365ForMarketingEmail
98.67.21.224/27—Dynamics365ForMarketingEmail
Showing 39 of 39 prefixes All prefixes (CSV)

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)
allow 102.133.251.96/27;
allow 104.211.80.0/24;
allow 13.66.138.128/25;
allow 13.69.226.128/25;
allow 13.71.171.0/24;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 102.133.251.96/27 -j ACCEPT
iptables -A INPUT -s 104.211.80.0/24 -j ACCEPT
iptables -A INPUT -s 13.66.138.128/25 -j ACCEPT
iptables -A INPUT -s 13.69.226.128/25 -j ACCEPT
iptables -A INPUT -s 13.71.171.0/24 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

  1. Microsoft Azure: published IP ranges · checked 5 Nov 2026
  2. Microsoft Azure documentation