Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
natwest.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 04:04:57 UTC · ↺ Refresh
MX Hostnames
- mail16.rbs.com
- mail15.rbs.com
- mail03.rbs.com
- mail01.rbs.com
- mail02.rbs.com
- mail04.rbs.com
- mail14.rbs.com
- mail13.rbs.com
MX Priorities
- mail04.rbs.com: 10
- mail13.rbs.com: 10
- mail14.rbs.com: 10
- mail15.rbs.com: 10
- mail16.rbs.com: 10
- mail01.rbs.com: 10
- mail02.rbs.com: 10
- mail03.rbs.com: 10
A / AAAA Records
- 13.107.213.40 (no PTR)
- 13.107.246.40 (no PTR)
- 2620:1ec:46::40 (no PTR)
- 2620:1ec:bdf::40 (no PTR)
Mail Server IPs
- 155.136.80.114 ↩ mail04.rbs.com
- 155.136.80.101 ↩ mail13.rbs.com
- 155.136.80.104 ↩ mail14.rbs.com
- 155.136.80.107 ↩ mail15.rbs.com
- 155.136.80.110 ↩ mail16.rbs.com
SOA Record
Raw SOA
udns1.cscdns.net premiumdns.support.neustar 2019116200 3600 600 604800 86400
Primary NS (mname)
udns1.cscdns.net
Admin Email (rname)
premiumdns@support.neustar
Serial
2019116200
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
udns1.cscdns.net
udns2.cscdns.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:155.136.80.0/24 ip4:80.75.73.242 ip4:81.145.55.71 ip4:82.144.239.194 ip4:195.3.184.231 ip4:195.3.184.230 ip4:195.225.218.101 ip4:195.184.243.2 ip4:155.136.18.0/24 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
25 records- atlassian-domain-verification=flnamO4dwq3z3g3lqA/2XdN9LE4I1BgfZstm/2YLjis1uhLVSkkDPyxeC197djVo
- apple-domain-verification=0x7XCbJmA_cX17EzsF-NA5fj6kfju6wwJaqFiMu45Os
- hcp-domain-verification=10cebe53ac6a032497cf67ca6e857fe9902b9e1844bbab189aded51432075cf2
- dc877d15-6af2-44d6-88f0-bc17059300ba
- Yn5wRXwsSo/zzcEu5AgquIu135Bt864lYgHlPFK+XTdkPdtzolNAY4oUGdCAJvNR2OLPPUTceFwp5OA/jtZsrA==
- pexip-portal-domain-verification=5b44155a-b3af-4ff2-afb6-16562cbb8540
- flexera-domain-verification-gqlthyqyxzftximq
- pexip-ms-tenant-domain-verification=5b44155a-b3af-4ff2-afb6-16562cbb8540
- google-site-verification=k1rgRZEsZdrUjWUuva53F0tv-0JuTQs5aK9Oobxknrk
- onetrust-domain-verification=19de748a2f884c84928562a9b69e96ac
- mongodb-site-verification=T0NwD4yuhh81Or9GwaLxjrG8On2lI48i
- facebook-domain-verification=pm28mp1iyyit8ndzk9syde2lbo7sf3
- apple-domain-verification=IqXcrZfN7rjbjn9g
- twilio-domain-verification=acbe70f92d5a4aef2b80c928ecfc2f19
- adobe-sign-verification=a8c27034c1cd39851b67d5d68276dcd6
- SPFv=spf1 ip4:155.136.80.0/24 ip4:80.75.73.242 ip4:81.145.55.71 ip4:82.144.239.194 ip4:195.3.184.231 ip4:195.3.184.230 ip4:195.225.218.101 ip4:195.184.243.2 ip4:155.136.18.0/24 -all
- flexera-domain-verification-bnpliwdvjtzqqtjp
- dtm-domain-verification=i2jvBQJK08uT_i4KWgsbVCx-Z6cnGZiMqHGRKmkHiiM
- google-site-verification=zQZVZfWOg-1f5LxPoceTDWXde5_5DZbRe7P5XxXlq6U
- google-site-verification=TcUnRdI0f2nLsJH24Wl5eer6XTTYq2bREFBStt6nsTA
- adobe-idp-site-verification=641792395842e9c7dfd8d65c821ed7a9e09eb29ce1e518d34ca193bdf66fa4ec
- MS=ms82743154
- amazonses:Sg6m6akLDWABsjpzrzr7pUogQTqEWT0M7pfdrwP5bjs=
- hcp-domain-verification=b4330a5d7c182c65b9eb6c85ce04f5c9886d1bed696dda30664c0029efb3fc15
- hcp-domain-verification=e5befca56b8cdc255fac8d33bcccdfcf400a9febacce2dd9b35d04551793e3a3
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