WWW.RTSAK.COM - smtp.us.fastmail.fm

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smtp.us.fastmail.fm checked at 2025-09-26T12:54:06.890Z 356ms 93/93/93 100% R:9

`smtp.us.fastmail.fm`

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`

`us.fastmail.fm`

	MX	`in1-smtp.messagingengine.com`
	MX	`in2-smtp.messagingengine.com`
	A	103.168.172.37^{🇺🇸 FASTMAILPTYLTD-AS-AP}
	A	103.168.172.52^{🇺🇸 FASTMAILPTYLTD-AS-AP}

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AI analysis

smtp.us.fastmail.fm serves as the mail server for broud.net.

smtp.eu.fastmail.fm commonly serves as a mail server along with smtp.us.fastmail.fm.

Two IP numbers are pointed to by smtp.us.fastmail.fm: 103.168.172.37 and 103.168.172.52.

other host names include fellida.mail333.com, spicer.me, studioturnip.net, glockenspiel.burnbush.net and fccomp.net; they share IP numbers with smtp.us.fastmail.fm.

smtp.us.fastmail.fm is handled by two mail servers: in1-smtp.messagingengine.com and in2-smtp.messagingengine.com.

smtp.us.fastmail.fm uses the same mail server setup as other domains, for instance nianca.net, packagingboxessuppliers.com, skumleren.net, househunting.net and plaintextaccounting.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.

dbq