postmarkapp.com - robtex.com

postmarkapp.com

DNSSEC⚠️ Not signed
A94.247.142.1🇺🇸 CLOUDFLARESPECTRUM94.247.142.0/24
NSns-1262.awsdns-29.org ⭐
A2600:9000:5304:ee00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1262.awsdns-29.org
A205.251.196.238🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1262.awsdns-29.org
NSns-1657.awsdns-15.co.uk
A2600:9000:5306:7900::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1657.awsdns-15.co.uk
A205.251.198.121🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1657.awsdns-15.co.uk
NSns-229.awsdns-28.com
A2600:9000:5300:e500::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-229.awsdns-28.com
A205.251.192.229🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-229.awsdns-28.com
NSns-721.awsdns-26.net
A2600:9000:5302:d100::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-721.awsdns-26.net
A205.251.194.209🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-721.awsdns-26.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c08::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbi-in-f26.1e100.net
A172.253.115.26🇺🇸 Google172.253.115.0/24
PTRbg-in-f26.1e100.net
MXalt1.aspmx.l.google.com(20)
A2607:f8b0:4023:2801::1a🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f26.1e100.net
A192.178.128.27🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f27.1e100.net
MXalt2.aspmx.l.google.com(20)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXaspmx2.googlemail.com(30)
A2607:f8b0:4023:2801::1b🇺🇸 Google2607:f8b0::/32
PTRlcausi-in-f27.1e100.net
A192.178.128.26🇺🇸 Google192.178.128.0/24
PTRlcausi-in-f26.1e100.net
MXaspmx3.googlemail.com(30)
A2607:f8b0:4023:3003::1b🇺🇸 Google2607:f8b0::/32
PTRyulnkjt-in-f27.1e100.net
A172.253.145.27🇺🇸 Google172.253.145.0/24
PTRyulnkjt-in-f27.1e100.net
TXT01a65dddcd764010b6df567c88b8fb7d
TXTabuseipdb-verification=QzehCZYK
TXTdigicert: 00577009 nagele@wildbit.com
TXTgoogle-site-verification=Bd-0GuslXF2wO_SnN_1pHncqvPZAuCOZxlGaly-V8zI
TXTgoogle-site-verification=CFwYqNoJsUkztxVzMjK8u1m0_BaklRvOZb5aecNTk8o
TXTgoogle-site-verification=aRqd5oLuMuPX2-qGutbokgWlmw76Gr68-v_Ryr0Pha8
TXTv=spf1 a mx include:spf.mtasv.net include:_spf.google.com include:cmail1.com ...
SOAns-1262.awsdns-29.orgawsdns-hostmaster@amazon.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1778342046
rank #19258 globally
rank #9525 in the tld
WOT: SAFE (82/100)
📈 Tranco rank: #23,336

Subdomains

p-pm-inbound03-pktewr1-mx.postmarkapp.com
mx.postmarkapp.com
rebound.postmarkapp.com
pop3.postmarkapp.com
assets.postmarkapp.com
mx1-ord.postmarkapp.com
smtp.postmarkapp.com
fyi.postmarkapp.com
imap1.postmarkapp.com
mx1-iad.postmarkapp.com
sc-ord-api2.postmarkapp.com
dmarc.postmarkapp.com
mail2.postmarkapp.com
pmr-aws-use2-p.postmarkapp.com
p-pm-inbound03-pktsjc1-mx.postmarkapp.com
staging2-inbound.postmarkapp.com
mail.postmarkapp.com
ingress-proxy-marketing-us-east-2.postmarkapp.com
inbound.postmarkapp.com
spamcheck.postmarkapp.com
mx1.postmarkapp.com
web.postmarkapp.com
staging-bounces.postmarkapp.com
p-pm-inbound02-pktsjc1-mx.postmarkapp.com
inbound2.postmarkapp.com
p-pm-inbound01-pktsjc1-mx.postmarkapp.com
p-pm-inbound02-pktewr1-mx.postmarkapp.com
staging.postmarkapp.com
danveem.postmarkapp.com
account.postmarkapp.com
api.postmarkapp.com
www.postmarkapp.com
p-pm-inbound01-pktewr1-mx.postmarkapp.com
send.postmarkapp.com
nrw.postmarkapp.com
ea.postmarkapp.com
webmail.postmarkapp.com

Same first word

postmarkapp.net
postmarkapp.com

DNS History

21 records (10 active, 11 former)

20162017201820192020202120222023202420252026NSns-1262.awsdns-29.orgns-1657.awsdns-15.co.ukns-229.awsdns-28.comns-721.awsdns-26.netns-1520.awsdns-62.orgns-156.awsdns-19.comns-1785.awsdns-31.co.ukns-664.awsdns-19.netns1.p11.dynect.netns2.p11.dynect.netns3.p11.dynect.netns4.p11.dynect.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA94.247.142.1159.203.80.7645.55.76.10250.31.156.110
●NSns-1262.awsdns-29.org2019-09-01 → 2026-05-09 · 3 obs
○ 2018-09-08 02:02:20
● 2019-09-01 15:59:36
● 2026-05-09 16:11:04
○NSns-1520.awsdns-62.org2018-09-08 → 2018-09-08 · 4 obs
○ 2017-08-29 20:05:46
● 2018-09-08 02:02:20
○ 2019-09-01 15:59:36
○ 2026-05-09 16:11:04
○NSns-156.awsdns-19.com2018-09-08 → 2018-09-08 · 4 obs
○ 2017-08-29 20:05:46
● 2018-09-08 02:02:20
○ 2019-09-01 15:59:36
○ 2026-05-09 16:11:04
●NSns-1657.awsdns-15.co.uk2019-09-01 → 2026-05-09 · 3 obs
○ 2018-09-08 02:02:20
● 2019-09-01 15:59:36
● 2026-05-09 16:11:04
○NSns-1785.awsdns-31.co.uk2018-09-08 → 2018-09-08 · 4 obs
○ 2017-08-29 20:05:46
● 2018-09-08 02:02:20
○ 2019-09-01 15:59:36
○ 2026-05-09 16:11:04
●NSns-229.awsdns-28.com2019-09-01 → 2026-05-09 · 3 obs
○ 2018-09-08 02:02:20
● 2019-09-01 15:59:36
● 2026-05-09 16:11:04
○NSns-664.awsdns-19.net2018-09-08 → 2018-09-08 · 4 obs
○ 2017-08-29 20:05:46
● 2018-09-08 02:02:20
○ 2019-09-01 15:59:36
○ 2026-05-09 16:11:04
●NSns-721.awsdns-26.net2019-09-01 → 2026-05-09 · 3 obs
○ 2018-09-08 02:02:20
● 2019-09-01 15:59:36
● 2026-05-09 16:11:04
○NSns1.p11.dynect.net2015-08-20 → 2017-08-29 · 4 obs
● 2015-08-20 14:45:28
● 2017-08-29 20:05:46
○ 2018-09-08 02:02:20
○ 2026-05-09 16:11:04
○NSns2.p11.dynect.net2015-08-20 → 2017-08-29 · 4 obs
● 2015-08-20 14:45:28
● 2017-08-29 20:05:46
○ 2018-09-08 02:02:20
○ 2026-05-09 16:11:04
○NSns3.p11.dynect.net2015-08-20 → 2017-08-29 · 4 obs
● 2015-08-20 14:45:28
● 2017-08-29 20:05:46
○ 2018-09-08 02:02:20
○ 2026-05-09 16:11:04
○NSns4.p11.dynect.net2015-08-20 → 2017-08-29 · 4 obs
● 2015-08-20 14:45:28
● 2017-08-29 20:05:46
○ 2018-09-08 02:02:20
○ 2026-05-09 16:11:04
●MXalt1.aspmx.l.google.com2015-08-20 → 2026-05-09 · 2 obs
● 2015-08-20 14:45:28
● 2026-05-09 16:11:04
●MXalt2.aspmx.l.google.com2015-08-20 → 2026-05-09 · 2 obs
● 2015-08-20 14:45:28
● 2026-05-09 16:11:04
●MXaspmx.l.google.com2015-08-20 → 2026-05-09 · 2 obs
● 2015-08-20 14:45:28
● 2026-05-09 16:11:04
●MXaspmx2.googlemail.com2015-08-20 → 2026-05-09 · 2 obs
● 2015-08-20 14:45:28
● 2026-05-09 16:11:04
●MXaspmx3.googlemail.com2015-08-20 → 2026-05-09 · 2 obs
● 2015-08-20 14:45:28
● 2026-05-09 16:11:04
○A159.203.80.762021-10-30 → 2021-11-01 · 5 obs
○ 2019-11-02 19:22:20
● 2021-10-30 13:08:12
● 2021-11-01 04:13:00
○ 2026-02-18 11:58:00
○ 2026-05-09 16:11:04
○A45.55.76.1022016-03-08 → 2019-11-02 · 5 obs
○ 2016-01-31 20:18:24
● 2016-03-08 00:25:20
● 2019-11-02 19:22:20
○ 2021-10-30 13:08:12
○ 2026-05-09 16:11:04
○A50.31.156.1102015-08-20 → 2016-01-31 · 4 obs
● 2015-08-20 14:45:28
● 2016-01-31 20:18:24
○ 2016-03-08 00:25:20
○ 2026-05-09 16:11:04
●A94.247.142.12026-02-18 → 2026-05-09 · 3 obs
○ 2021-11-01 04:13:00
● 2026-02-18 11:58:00
● 2026-05-09 16:11:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
postmarkapp.comns-229.awsdns-28.com, ns-721.awsdns-26.net, ns-1657.awsdns-15.co.uk, ns-1262.awsdns-29.org2 records

✅ Authoritative Response

Server:205.251.192.229

NS records: ns-229.awsdns-28.com, ns-721.awsdns-26.net, ns-1657.awsdns-15.co.uk, ns-1262.awsdns-29.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postmarkapp.com (unsigned zone)

⏱️ Timing

Total: 1836ms | Queries: -

📄 Records

TypeCountSample Data
A194.247.142.1
NS4ns-1262.awsdns-29.org, ns-1657.awsdns-15.co.uk...
MX5aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)...
TXT701a65dddcd764010b6df567c88b8fb7d, abuseipdb-verification=QzehCZYK...
SOA1ns-1262.awsdns-29.org awsdns-hostmaster.

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-229.awsdns-28.com, ns-229.awsdns-28.com)

Analysis

Hierarchy

postmarkapp.com is the parent of p-pm-inbound03-pktewr1-mx.postmarkapp.com, mx.postmarkapp.com, rebound.postmarkapp.com, pop3.postmarkapp.com, assets.postmarkapp.com and a few other host names.

IP Addresses

postmarkapp.com points to IP number 94.247.142.1.

For instance, other host names culanth.org, wiltshirecreative.co.uk, ikt.nl, ungefunksjonshemmede.no and nottinghamhospitalscharity.org.uk share IP numbers with postmarkapp.com.

Name Servers

postmarkapp.com is delegated to four name servers: ns-229.awsdns-28.com, ns-721.awsdns-26.net, ns-1262.awsdns-29.org and ns-1657.awsdns-15.co.uk.

postmarkapp.com shares name servers with other domains at least partially, for example privateaviationsolutions.com, rehtona.net, d1oy8rzcuotmre.cloudfront.net, saiyohack.com and smallmedium.com.

Host names with two IP numbers:

ns-229.awsdns-28.com points to: 2600:9000:5300:e500::1 and 205.251.192.229

ns-721.awsdns-26.net points to: 2600:9000:5302:d100::1 and 205.251.194.209

ns-1262.awsdns-29.org points to: 2600:9000:5304:ee00::1 and 205.251.196.238

ns-1657.awsdns-15.co.uk points to: 2600:9000:5306:7900::1 and 205.251.198.121

Mail Servers

Five mail servers handle postmarkapp.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

postmarkapp.com shares mail servers with other domains at least partially; for instance scopwick.com, ns500671.ns500742.ns500731.ns500754.ns500754.ns500704.ns500742.ns500671.ns500704.ns500671.ns500671.ns500649.ns500649.ns500291.ns500131.lustychickser.com, ns500731.ns500742.ns500731.ns500754.ns500671.ns500705.ns500704.ns500688.ns500291.ns500671.ns500649.lustychickser.com, ns500754.ns500671.ns500742.ns500742.ns500671.ns500731.ns500754.ns500731.ns500705.ns500649.ns500678.ns500671.ns500131.lustychickser.com and ns500742.ns500754.ns500742.ns500742.ns500731.ns500671.ns500671.ns500742.ns500705.ns500649.ns500142.lusty(0x736c7574)z.com.

These mail servers are often used alongside alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.

Host names with two IP numbers:

aspmx2.googlemail.com points to 2607:f8b0:4023:2801::1b and 192.178.128.26

aspmx3.googlemail.com points to 2607:f8b0:4023:3003::1b and 172.253.145.27

aspmx.l.google.com points to 2607:f8b0:4004:c08::1a and 172.253.115.26

alt1.aspmx.l.google.com points to 2607:f8b0:4023:2801::1a and 192.178.128.27

alt2.aspmx.l.google.com points to 2a00:1450:400b:c02::1a and 172.253.116.27