a.mx.slack.com - dns.ninja

a.mx.slack.com

DNSSEC⚠️ Not signed
A3.95.117.96🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-95-117-96.compute-1.amazonaws.com
A3.210.88.6🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
A34.193.255.5🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.196.46.202🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.202.253.6🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.203.97.10🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.204.109.226🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.205.195.66🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.225.62.185🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
A34.231.24.224🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
A52.73.140.59🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix
A54.92.199.186🇺🇸 Amazon54.92.128.0/17 EC2 IAD prefix
A54.147.59.169🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix
A54.163.235.119🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix
A54.225.153.205🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix
MXinbound-smtp.us-east-1.amazonaws.com ⭐
A3.211.210.226🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
PTRec2-3-211-210-226.compute-1.amazonaws.com
A44.206.9.87🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-206-9-87.compute-1.amazonaws.com
A44.210.166.32🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-210-166-32.compute-1.amazonaws.com
A54.164.173.191🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix
PTRec2-54-164-173-191.compute-1.amazonaws.com
A54.197.5.236🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15
PTRec2-54-197-5-236.compute-1.amazonaws.com
TXTv=spf1 -all

mx.slack.com

DNSSEC⚠️ Not signed
A3.95.117.96🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
A3.210.88.6🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix
A34.193.255.5🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.196.46.202🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.202.253.6🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.203.97.10🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.204.109.226🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.205.195.66🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix
A34.225.62.185🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
A34.231.24.224🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix
A52.73.140.59🇺🇸 Amazon52.72.0.0/15 EC2 IAD prefix
A54.92.199.186🇺🇸 Amazon54.92.128.0/17 EC2 IAD prefix
A54.147.59.169🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix
A54.163.235.119🇺🇸 Amazon54.160.0.0/14 EC2 IAD prefix
A54.225.153.205🇺🇸 Amazon54.224.0.0/15 EC2 IAD prefix
MXinbound-smtp.us-east-1.amazonaws.com ⭐
TXTv=spf1 -all
WOT: SAFE (89/100)
WOT: SAFE (93/100)

Same first word

a.appspot.com
a.com.ua
a.co.nz
a.org.pe
a.doctor
a.je
a.edgekey.net
a.cc
a.kg
a.cz
a.sd.cn
a.gt
a.mk
a.business
a.st
a.wedding
a.com.cm
a.media
a.works
a.nt.ro
a.my
a.mba
a.network
a.foundation
a.fish
a.com.do
a.biz
a.im
a.discount
a.support
a.bingo
a.band
a.cl
a.to
a.gd
a.net.vn
a.careers
a.parts
a.gl
a.tennis
a.solutions
a.plus
a.events
a.pics
a.co.za
a.uk
a.partners
a.canva-apps.cn
a.chat
a.pictures
a.guru
a.aivencloud.com
a.zip
a.directory
a.kiev.ua
a.net.nz
a.school
a.net.pl
a.cn
a.org
a.hr
a.dk
a.tv
a.com.se
a.edgesuite.net
a.gov.lv
a.net.cn
a.sc
a.realty
a.boutique
a.community
a.jewelry
a.fm
a.com.my
a.com.mk
a.asia
a.me
a.ly
a.com.mx
a.ai
a.cx
a.ws
a.hn
a.team
a.ro
a.ink
a.vin
a.org.pl
a.show
a.sv
a.ki
a.run
a.uy
a.sumy.ua
a.sk
a.md
a.te.ua
a.associates
a.pl
a.com.vn

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a.org.pk
a.od.ua
a.fail
a.ks.ua
a.video
a.domains
a.zuerich
a.co.bw
a.training
a.qh.cn
a.nm.cn
a.nf
a.theatre
a.recipes
a.com.gt
a.bb
a.cab
a.education
a.photo
a.xyz
a.fr
a.how
a.com.uy
a.center
a.industries
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a.lu
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a.dp.ua
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a.ee
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a.de
a.com.pl
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a.com.ph
a.com.pk
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a.co.nl
a.land
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a.pro
a.au
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DNS History

18 records (16 active, 2 former)

MXinbound-smtp.us-east-1.amazonaws.comA3.210.88.63.95.117.9634.193.255.534.196.46.20234.202.253.634.203.97.1034.204.109.22634.205.195.6634.225.62.18534.231.24.22452.73.140.5954.147.59.16954.163.235.11954.225.153.20554.92.199.18618.230.171.14154.94.183.148
●MXinbound-smtp.us-east-1.amazonaws.com2026-06-02 → 2026-08-04 · 2 obs
● 2026-06-02 00:42:26
● 2026-08-04 09:00:54
○A18.230.171.1412026-06-02 → 2026-08-01 · 5 obs
● 2026-06-02 00:42:26
○ 2026-07-29 23:37:50
● 2026-08-01 00:07:56
○ 2026-08-04 09:00:52
○ 2026-08-04 09:00:54
●A3.210.88.62026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A3.95.117.962026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.193.255.52026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.196.46.2022026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.202.253.62026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.203.97.102026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.204.109.2262026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.205.195.662026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.225.62.1852026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A34.231.24.2242026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A52.73.140.592026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A54.147.59.1692026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A54.163.235.1192026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A54.225.153.2052026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
●A54.92.199.1862026-07-29 → 2026-08-04 · 5 obs
○ 2026-06-02 00:42:26
● 2026-07-29 23:37:50
○ 2026-08-01 00:07:56
● 2026-08-04 09:00:52
● 2026-08-04 09:00:54
○A54.94.183.1482026-06-02 → 2026-08-01 · 5 obs
● 2026-06-02 00:42:26
○ 2026-07-29 23:37:50
● 2026-08-01 00:07:56
○ 2026-08-04 09:00:52
○ 2026-08-04 09:00:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, h.gtld-servers.net, f.gtld-servers.net, c.gtld-servers.net...-
slack.comns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org2 records

✅ Authoritative Response

Server:205.251.197.213

NS records: ns-166.awsdns-20.com, ns-606.awsdns-11.net, ns-1901.awsdns-45.co.uk, ns-1493.awsdns-58.org

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 247ms | Queries: -

📄 Records

TypeCountSample Data
A153.210.88.6, 54.147.59.169...
MX1inbound-smtp.us-east-1.amazonaws.com (pr
TXT1v=spf1 -all

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-166.awsdns-20.com, ns-166.awsdns-20.com)

Analysis

IP Addresses

a.mx.slack.com directs to 15 IP numbers: 3.95.117.96, 3.210.88.6, 34.193.255.5 and 12 other.

Two other host names, along with fathom-xyz.slack.com, huaweis.slack.com and tuncert-team.slack.com, also share IP numbers with a.mx.slack.com.

Mail Servers

The sole mail server for a.mx.slack.com is inbound-smtp.us-east-1.amazonaws.com.

Among the domains sharing a mail server setup with a.mx.slack.com are surfline.info, sunswap.com, mayurc.com and two others.

There is at least a partial MX overlap between a.mx.slack.com and other domains, including amaneworks.com, timedevalor.sp.gov.br, peopleshr.com and two others.

inbound-smtp.us-west-2.amazonaws.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are mail servers that frequently appear together with these mail servers.

inbound-smtp.us-east-1.amazonaws.com has five IP addresses: 3.211.210.226, 44.206.9.87, 44.210.166.32 plus two others.