CF1763854899978-tsm20251122191145

NSLIST.NET - pb-mx21.pobox.com

Search for IP or hostnames:

pb-mx21.pobox.com checked at 2025-11-22T23:41:39.951Z 141ms 87/87/87 100% R:10 allDone:true timedOut:false

`pb-mx21.pobox.com`

	MX	`in1-smtp.messagingengine.com`
			A	103.168.172.216^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-01.messagingengine.com`
			A	103.168.172.217^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-02.messagingengine.com`
			A	103.168.172.218^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-03.messagingengine.com`
			A	103.168.172.219^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-04.messagingengine.com`
			A	103.168.172.220^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-05.messagingengine.com`
			A	103.168.172.221^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-06.messagingengine.com`
			A	103.168.172.222^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-07.messagingengine.com`
			A	103.168.172.223^{🇺🇸 FASTMAILPTYLTD-AS-AP}
				PTR	`phl-mx-08.messagingengine.com`
	MX	`in2-smtp.messagingengine.com`
			A	202.12.124.216^{FASTMAILPTYLTD-AS-AP}
				PTR	`stl-mx-01.messagingengine.com`
			A	202.12.124.217^{FASTMAILPTYLTD-AS-AP}
				PTR	`stl-mx-02.messagingengine.com`
	A	103.168.172.37^{🇺🇸 FASTMAILPTYLTD-AS-AP}
			PTR	`userweb.fastmail.com`
	A	103.168.172.52^{🇺🇸 FASTMAILPTYLTD-AS-AP}
			PTR	`userweb.fastmail.com`

`pobox.com`

	NS	`fmns1.messagingengine.com`
	NS	`fmns2.messagingengine.com`
	MX	`in1-smtp.messagingengine.com`
	MX	`in2-smtp.messagingengine.com`
	A	103.168.172.65^{🇺🇸 FASTMAILPTYLTD-AS-AP}

rank #19914 globally
rank #10261 in the tld

AI analysis

pb-mx21.pobox.com resolves to two IP numbers: 103.168.172.37 and 103.168.172.52.

Other host names, for instance wholistic.com.au, abcpost.speedpost.net, www.hrindex.com, limax.org and vacca.co share IP numbers with pb-mx21.pobox.com.

pb-mx21.pobox.com is served by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

pb-mx21.pobox.com shares the mail server setup with other domains, for example alternative-enterprises.com.hk, commandhost.net, leibniz-abi.de, email22.com and scalardev.com.

pb-mx21.pobox.com shares some mail servers with other domains, at least partially, for instance www.crowdspeak.net, eager.app and susanlgoldberg.com.

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.

Two IP numbers for host names:

in2-smtp.messagingengine.com points to: 202.12.124.216 and 202.12.124.217.

dbq