CF1757575109261-tsm20250910161120

DNSWHOIS.INFO - web.fastmail.com

Search for IP or hostnames:

web.fastmail.com checked at 2025-09-11T07:18:29.245Z 154ms 84/84/84 100% R:11

web.fastmail.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

fastmail.com

NSfmns1.messagingengine.com
NSfmns2.messagingengine.com
MXin1-smtp.messagingengine.com
MXin2-smtp.messagingengine.com
A103.168.172.65🇺🇸 FASTMAILPTYLTD-AS-AP
rank #16360 globally
rank #8460 in the tld

AI analysis

There are two IP numbers that web.fastmail.com points to: 103.168.172.37 and 103.168.172.52.

IP numbers are shared between web.fastmail.com and other host names such as pep.pobox.com, burnbush.net, ns2.btg-llc.com, tokarev.org, and thisway.net.

The two mail servers, in1-smtp.messagingengine.com and in2-smtp.messagingengine.com, manage web.fastmail.com.

Just like domains such as maynet.org, shomodj.com, nofilter.org, loadbull.com, and hexspoor.me, web.fastmail.com also shares the same mail server setup.

in1-smtp.messagingengine.com points to the following eight IP numbers: 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. in2-smtp.messagingengine.com points to two IP numbers: 202.12.124.216 and 202.12.124.217.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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eOFdZOr CF johedugfp 2025-09-11