IPLIST.NET - pb-mx21.pobox.com

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pb-mx21.pobox.com checked at 2025-12-01T06:11:34.535Z 169ms 87/87/87 100% R:7 allDone:true timedOut:false

pb-mx21.pobox.com

MXin1-smtp.messagingengine.com
A103.168.172.216🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-01.messagingengine.com
A103.168.172.217🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-02.messagingengine.com
A103.168.172.218🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-03.messagingengine.com
A103.168.172.219🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-04.messagingengine.com
A103.168.172.220🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-05.messagingengine.com
A103.168.172.221🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-06.messagingengine.com
A103.168.172.222🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-07.messagingengine.com
A103.168.172.223🇺🇸 FASTMAILPTYLTD-AS-AP
PTRphl-mx-08.messagingengine.com
MXin2-smtp.messagingengine.com
A202.12.124.216 FASTMAILPTYLTD-AS-AP
PTRstl-mx-01.messagingengine.com
A202.12.124.217 FASTMAILPTYLTD-AS-AP
PTRstl-mx-02.messagingengine.com
A103.168.172.37🇺🇸 FASTMAILPTYLTD-AS-AP
PTRuserweb.fastmail.com
A103.168.172.52🇺🇸 FASTMAILPTYLTD-AS-AP
PTRuserweb.fastmail.com

pobox.com

NSfmns1.messagingengine.com
NSfmns2.messagingengine.com
MXin1-smtp.messagingengine.com
MXin2-smtp.messagingengine.com
A103.168.172.65🇺🇸 FASTMAILPTYLTD-AS-AP
rank #19914 globally
rank #10261 in the tld

AI analysis

Two IP numbers are pointed to by pb-mx21.pobox.com: 103.168.172.37 and 103.168.172.52.

other host names include wholistic.com.au, abcpost.speedpost.net, www.hrindex.com, limax.org and vacca.co; they share IP numbers with pb-mx21.pobox.com.

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

pb-mx21.pobox.com uses the same mail server setup as other domains, for instance 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, for example www.crowdspeak.net, eager.app and susanlgoldberg.com.

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