`postpro.net`

DNSSEC	⚠️ Not signed
A	103.168.172.65^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
		PTR	`mail.fastmail.com`
NS	`fmns1.messagingengine.com` ⭐
		A	162.159.24.253^{Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fmns1.messagingengine.com`
NS	`fmns2.messagingengine.com`
		A	162.159.25.114^{Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`fmns2.messagingengine.com`
MX	`in1-smtp.messagingengine.com` ⭐
		A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-01.messagingengine.com`
		A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-02.messagingengine.com`
		A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-03.messagingengine.com`
		A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-04.messagingengine.com`
		A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-05.messagingengine.com`
		A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-06.messagingengine.com`
		A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-07.messagingengine.com`
		A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP103.168.172.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`phl-mx-08.messagingengine.com`
MX	`in2-smtp.messagingengine.com`⁽²⁰⁾
		A	202.12.124.216^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-01.messagingengine.com`
		A	202.12.124.217^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-02.messagingengine.com`
		A	202.12.124.218^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-03.messagingengine.com`
		A	202.12.124.219^{FASTMAILPTYLTD-AS-AP202.12.124.0/24 Fastmail Pty Ltd Level 2, 114 William Street}
			PTR	`stl-mx-04.messagingengine.com`
TXT	`v=spf1 include:spf.messagingengine.com ~all`
SOA	`fmns1.messagingengine.com`postmaster@messagingengine.com 2026-03-05 #0

`net`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291465

WOT: SAFE (60/100)

Subdomains

www.postpro.net

Same first word

postpro.net

postpro.at

postpro.eu

postpro.tv

postpro.com

postpro.com.au

postpro.ru

postpro.fr

postpro.media

postpro.ch

postpro.berlin

postpro.de

postpro.es

Similar names

sportop.be

sportop.cz

prostop.net

sportop.eu

toppros.com.hk

sportop.cn

protops.com.br

propost.ru

propost.be

prostop.eu

optspro.ru

sportop.com.pl

portpos.com

prospot.si

sportop.com

toprops.ca

prospot.net

prostop.com

prospot.com

topspro.com.br

propost.pl

spotpro.com

ostprop.com

spotpro.com.au

prospot.online

sportop.com.tw

popsort.com

stoppro.com

prostop.be

protops.com

protops.de

poports.com.au

sportop.fitness

propost.co.uk

postorp.com.br

prospot.co.uk

toppros.com

propost.org

prostop.ca

psporto.net

prostop.ru

spotpro.co.il

topspor.de

opsport.com

prostop.cz

popstor.com

tpopros.com

prostop.nl

propost.nl

prospot.sk

sportop.nl

sportop.gr

sopport.com

prospot.biz

prostop.de

stroppo.com

posport.com

sportop.pl

propost.ca

tropsop.com

poports.com

DNS History

8 records (5 active, 3 former)

●NSfmns1.messagingengine.com2017-07-30 → 2026-03-12 · 3 obs

○ 2017-07-09 05:58:26
● 2017-07-30 01:41:40
● 2026-03-12 01:56:12

●NSfmns2.messagingengine.com2017-07-30 → 2026-03-12 · 3 obs

○ 2017-07-09 05:58:26
● 2017-07-30 01:41:40
● 2026-03-12 01:56:12

○NSns1.messagingengine.com2015-08-31 → 2017-07-09 · 4 obs

● 2015-08-31 00:03:32
● 2017-07-09 05:58:26
○ 2017-07-30 01:41:40
○ 2026-03-12 01:56:12

○NSns2.messagingengine.com2015-08-31 → 2017-07-09 · 4 obs

● 2015-08-31 00:03:32
● 2017-07-09 05:58:26
○ 2017-07-30 01:41:40
○ 2026-03-12 01:56:12

●MXin1-smtp.messagingengine.com2015-08-31 → 2026-03-12 · 2 obs

● 2015-08-31 00:03:32
● 2026-03-12 01:56:12

●MXin2-smtp.messagingengine.com2015-08-31 → 2026-03-12 · 2 obs

● 2015-08-31 00:03:32
● 2026-03-12 01:56:12

●A103.168.172.652026-02-15 → 2026-03-12 · 3 obs

○ 2018-05-09 17:39:14
● 2026-02-15 00:12:42
● 2026-03-12 01:56:12

○A66.111.4.792015-08-31 → 2018-05-09 · 4 obs

● 2015-08-31 00:03:32
● 2018-05-09 17:39:14
○ 2026-02-15 00:12:42
○ 2026-03-12 01:56:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	j.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net, i.gtld-servers.net...	-
postpro.net	fmns1.messagingengine.com, fmns2.messagingengine.com	-

✅ Authoritative Response

Server: 162.159.25.114

NS records: fmns1.messagingengine.com, fmns2.messagingengine.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for postpro.net (unsigned zone)

⏱️ Timing

Total: 628ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.168.172.65`
NS	2	`fmns1.messagingengine.com, fmns2.messagingengine.com`
MX	2	`in1-smtp.messagingengine.com (pri: 10), in2-smtp.messagingengine.com (pri: 20)`
TXT	1	`v=spf1 include:spf.messagingengine.com ~`
SOA	1	`fmns1.messagingengine.com postmaster.mes`

Analysis

Hierarchy

postpro.net is the parent of www.postpro.net.

IP Addresses

postpro.net resolves to a single IP: 103.168.172.65.

Other host names, for instance mail.jessereynolds.com, penguinmail.com, mail.nickg.me.uk, mail.playjazzsingjazz.com and mailftp.com share IP numbers with postpro.net.

Name Servers

postpro.net has two name servers: fmns1.messagingengine.com and fmns2.messagingengine.com.

postpro.net shares the same name server setup as other domains, for example onepost.net, internet-mail.org, 126.123.147.64.in-addr.arpa, promessage.com and 16mail.com.

postpro.net shares some name servers with other domains, for example 4.111.66.in-addr.arpa, tm20.com, your-mail.com, emailengine.org and petml.com.

Host names with a single IP:

fmns1.messagingengine.com points to 162.159.24.253

fmns2.messagingengine.com points to 162.159.25.114

Mail Servers

postpro.net is served by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

postpro.net shares the mail server setup with other domains, for example sketchtel.ca, everynothing.com, woenet.com, iflux.dk and quintonpetty.com.

postpro.net shares at least some mail servers with other domains, for example mtcr.us.

Eight IP numbers for host names:

in1-smtp.messagingengine.com points to 103.168.172.216, 103.168.172.217, 103.168.172.218, 103.168.172.219, 103.168.172.220, 103.168.172.221, 103.168.172.222 and 103.168.172.223.

Four IP numbers for host names:

in2-smtp.messagingengine.com points to 202.12.124.216, 202.12.124.217, 202.12.124.218 and 202.12.124.219.

postpro.net - robtex.com

postpro.net

net