Port 143 (IMAP)

HoneyLabs honeypots recorded 778 probes against destination port 143 (IMAP) from 161 distinct source IP addresses in the last 7 days.

First observed 2026-11-08 08:50, most recently 2026-11-15 01:29 (UTC).

What the sensors show

The sources sat in 24 networks across 20 countries. No single address sent more than 4% of them. The largest source network was AS15169 (Google LLC), with 71% of the probes from 46 addresses. 3 of the 25 busiest addresses are recognised research scanners.

Most active source addresses

Source IPProbesNetworkCountry
35.210.86.7830Google LLCBE
35.210.82.13120Google LLCBE
35.206.169.25320Google LLCBE
35.210.156.19120Google LLCBE
35.210.207.10520Google LLCBE
35.206.185.16220Google LLCBE
35.210.72.6820Google LLCBE
35.210.63.1120Google LLCBE

Networks it comes from

ASNOrganisationProbesSource IPs
AS15169Google LLC55046
AS135377UCLOUD INFORMATION TECHNOLOGY (HK) LIMITED7653
AS16509Amazon.com, Inc.494
AS212835Shesternin Vladimir Anatolievich143
AS8075Microsoft Corporation1414
AS264617GRUPO PANAGLOBAL 15 S.A113

Where it comes from

CountryProbes
Belgium550
United States96
Hong Kong29
Portugal16
Russia15
Germany13

Client strings seen on this port

User agentProbes
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.3655
curl/7.29.055
visionheight.com/scan Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) Chrome/126.0.0.0 Safari/537.3634
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.3614
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.6312.86 Safari/537.368

Port report

Port report

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