InternetDataInternetData

SMTP IP

Every host seen with TCP port 587 open, with the SMTP greeting banner where one was returned.

Explore API
IDsmtp_ip_v1
Formatscsvgz
Update FrequencyWeekly
Last UpdatedOctober 2nd 2026 (today)
Entries6,870,986
File Size (csvgz)66.0 MB

Overview

Every host seen with TCP port 587 open, with the SMTP greeting banner where one was returned.

Formats

curl -L -o smtp_ip_v1.csv.gz -X GET "https://internetdata.io/api/v2/database/download?id=smtp_ip_v1&format=csvgz&apikey=$APIKEY"
Schema
NameTypeDescription
ipipaddressThe IP address, IPv4 or IPv6, seen with TCP port 587 open.
portintegerThe TCP port scanned (587, SMTP submission).
bannerstringThe SMTP greeting (220 line) the host returned, with any line breaks collapsed to spaces. Empty when the port was open but no SMTP greeting was received.
session_okbooleanTrue if an SMTP greeting was captured; false if the port was open but silent.
first_seendateThe first day in the 90-day window the port was observed open.
last_seendateThe most recent day the port was observed open.
Samples
ipportbannersession_okfirst_seenlast_seen
78.157.35.74587220-cp23-66.cp.fnv.privatedns.biz ESMTP Exim 4.100 #2 Sun, 20 Sep 2026 22:21:23 +0000 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.true2026-08-112026-09-27
185.12.92.46587220 isp101.deserv.net ESMTP Exim 4.98.2 Fri, 21 Aug 2026 20:52:19 +0300true2026-07-092026-09-30
80.77.113.89587220-cp.kmak.cloud ESMTP Exim 4.100 #2 Mon, 21 Sep 2026 03:37:38 +0200 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail.true2026-07-102026-09-23
139.99.88.255587220 kst-vp326.bringto.top ESMTP Exim 4.96 Wed, 23 Sep 2026 07:46:41 +0700true2026-09-212026-09-26
202.234.150.224587220 sv202234150224.e-pos.link ESMTP Postfixtrue2026-07-062026-09-23

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