cuf.pt

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
cuf.pt
Yes
โœ“ Yes
Google
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-03-20 08:07:42 UTC ยท โ†บ Refresh

MX Hostnames

  • ASPMX2.GOOGLEMAIL.COM
  • ASPMX3.GOOGLEMAIL.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM

MX Priorities

  • aspmx3.googlemail.com: 10
  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 35.186.254.76 โ†ฉ 76.254.186.35.bc.googleusercontent.com
  • 2600:1901::71ff:0:0:0:0 (no PTR)

Mail Server IPs

  • 172.253.116.26 โ†ฉ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b โ†ฉ dj-in-f27.1e100.net
  • 142.251.179.26 โ†ฉ pd-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1a โ†ฉ bh-in-f26.1e100.net
  • 108.177.123.26 โ†ฉ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.27 โ†ฉ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a โ†ฉ dj-in-f26.1e100.net

SOA Record

Raw SOA dns.net4b.pt dns-adm.meganet.pt 2603121600 3600 900 604800 300
Primary NS (mname)
dns.net4b.pt
Admin Email (rname)
dns-adm@meganet.pt
Serial
2603121600
Refresh
3600s
Retry
900s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

dns2.net4b.pt
dns.net4b.pt

SPF Record

โœ“ Strict (-all)
v=spf1 ip4:213.58.139.100 ip4:213.58.139.33 ip4:213.58.139.35 ip4:195.245.176.0/24 ip4:195.245.178.0/24 ip4:200.189.179.156 ip4:62.28.63.167 ip4:213.205.72.210 ip4:176.119.193.10 include:_spf.google.com include:_spf.anubisnetworks.com include:spf.mandrillapp.com include:servers.mcsv.net include:_spf.eu.mailgun.org include:sendgrid.net include:_spf.qualtrics.com -all
๐Ÿ“Š DNS lookups: 7/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected],mailto:[email protected]

DKIM Selectors

โœ“ 2 found
s1._domainkey
s2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

7 records
  • onetrust-domain-verification=676e0fc48d2d77a61da40fa15be840d2362d0c0b7cc62443625c78b781524e5d
  • google-site-verification=U6la5x6lDcrwtlQuOkDt5XSo7P9rd3bRrW28kV8YM7w
  • SPFv=spf1 ip4:213.58.139.100 ip4:213.58.139.33 ip4:213.58.139.35 ip4:195.245.176.0/24 ip4:195.245.178.0/24 ip4:200.189.179.156 ip4:62.28.63.167 ip4:213.205.72.210 ip4:176.119.193.10 include:_spf.google.com include:_spf.anubisnetworks.com include:spf.mandrillapp.com include:servers.mcsv.net include:_spf.eu.mailgun.org include:sendgrid.net include:_spf.qualtrics.com -all
  • b847122214092fa72c9f13368b9c4e4d
  • atlassian-sending-domain-verification=a3beb903-9beb-4832-b5d4-e141ca1db113
  • infoblox-domain-mastery=13311cad90ae705597afd07ba377eb66bfb645148f42bc4939c38c414d4fcc70e0
  • firebase=prd-202405172
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