IP address

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--52.103.7.21mail-westcentralusazolkn19010021.outbound.protection.outlook.com
Shodan(more info)
Passive DNS
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IP blacklists
DataPlane SMTP data
52.103.7.21 is listed on the DataPlane SMTP data blacklist.

Description: DataPlane.org is a community-powered Internet data, feeds,<br>and measurement resource for operators, by operators. IP addresses that <br>have been identified as SMTP clients sending unsolicited DATA commands.
Type of feed: primary (feed detail page)

Last checked at: 2025-12-16 03:10:00.753000
Was present on blacklist at: 2025-12-09 07:10, 2025-12-09 11:10, 2025-12-09 15:10, 2025-12-09 19:10, 2025-12-09 23:10, 2025-12-10 03:10, 2025-12-10 07:10, 2025-12-10 11:10, 2025-12-10 15:10, 2025-12-10 19:10, 2025-12-10 23:10, 2025-12-11 03:10, 2025-12-11 07:10, 2025-12-11 11:10, 2025-12-11 15:10, 2025-12-11 19:10, 2025-12-11 23:10, 2025-12-12 03:10, 2025-12-12 07:10, 2025-12-12 11:10, 2025-12-12 15:10, 2025-12-12 19:10, 2025-12-12 23:10, 2025-12-13 03:10, 2025-12-13 07:10, 2025-12-13 11:10, 2025-12-13 15:10, 2025-12-13 19:10, 2025-12-13 23:10, 2025-12-14 03:10, 2025-12-14 07:10, 2025-12-14 11:10, 2025-12-14 15:10, 2025-12-14 19:10, 2025-12-14 23:10, 2025-12-15 03:10, 2025-12-15 07:10, 2025-12-15 11:10, 2025-12-15 15:10, 2025-12-15 19:10, 2025-12-15 23:10, 2025-12-16 03:10
Origin AS
AS8075 - MICROSOFT-CORP-MSN-AS-BLOCK
BGP Prefix
52.96.0.0/12
geo
United States, Cheyenne
🕑 America/Denver
hostname
mail-westcentralusazolkn19010021.outbound.protection.outlook.com
Address block ('inetnum' or 'NetRange' in whois database)
52.96.0.0 - 52.111.255.255
reserved_range
0
ts_added
2025-12-09 07:10:04.261000
ts_last_update
2025-12-16 07:10:12.726000

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