🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`mail.opensource.apple.com`

DNSSEC	⚠️ Not signed
A	17.255.216.52^{🇺🇸 Apple17.128.0.0/9}
		PTR	`mail.opensource.apple.com`

`opensource.apple.com`

DNSSEC

⚠️ Not signed

WOT: SAFE (94/100)
WOT: SAFE (94/100)

PTR for

52.216.255.17.in-addr.arpa

Previously MX for

mail.opensource.apple.com

Same first word

mail.digital

mail.fm

mail.am.in

mail.mil

mail.org.fj

mail.f5.si

mail.party

mail.tax

mail.coop

mail.onl

mail.directory

mail.freemyip.com

mail.com.tw

mail.hk.com

mail.mh

mail.gov.bn

mail.mmafan.biz

mail.ky

mail.synology-diskstation.de

mail.schoolbus.jp

mail.com.ai

mail.cn.ua

mail.uz.ua

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mail.ru.com

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mail.com.se

mail.gov.ao

mail.me

mail.tv.tr

mail.ac.gov.br

mail.info.ro

mail.edu.me

mail.ai.in

mail.events

mail.gov.ru

mail.pr

mail.ai.vn

mail.mlbfan.org

mail.ph

mail.nhlfan.net

mail.edu.tj

mail.post.in

mail.gl

mail.link

mail.no

mail.net.vn

mail.lib.wy.us

mail.pictures

mail.gov.kg

mail.ag

mail.hk

mail.win

mail.net

mail.ne.kr

mail.download

mail.support

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mail.hacca.jp

mail.moo.jp

mail.new

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mail.rodeo

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mail.web.id

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mail.io

mail.cash

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mail.blogspot.fi

mail.baby

mail.df.gov.br

mail.ci

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mail.blogspot.be

mail.bn

mail.org.pe

mail.go.kr

mail.my-gateway.de

mail.wedding

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mail.gov.sg

mail.nyc.mn

mail.to

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mail.ba

mail.luxury

mail.shiksha

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mail.ki

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Previous names

Next names

DNS History

2 records (1 active, 1 former)

○MXmail.opensource.apple.com1970-01-01 → 1970-01-01 · 3 obs

● 1970-01-01 00:00:00
○ 2026-08-28 20:25:18
○ 2026-10-17 06:26:38

●A17.255.216.521970-01-01 → 2026-10-17 · 2 obs

● 1970-01-01 00:00:00
● 2026-10-17 06:26:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
apple.com	a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com	8 records

✅ Authoritative Response

Server:17.253.200.1

NS records: a.ns.apple.com, b.ns.apple.com, c.ns.apple.com, d.ns.apple.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for apple.com (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`17.255.216.52`

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a.ns.apple.com, a.ns.apple.com, b.ns.apple.com...)

Analysis

IP Addresses

mail.opensource.apple.com resolves to one IP address: 17.255.216.52.

mail.opensource.apple.com - robtex.com