Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
seamark.co.uk
Yes
✓ Yes
iCloud
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 20:49:36 UTC · ↺ Refresh
MX Hostnames
- mx30.micloud5.com
- mx20.micloud5.com
- mx10.micloud5.com
- mx40.micloud5.com
MX Priorities
- mx30.micloud5.com: 30
- mx10.micloud5.com: 10
- mx40.micloud5.com: 40
- mx20.micloud5.com: 20
A / AAAA Records
- 217.160.0.101 ↩ 217-160-0-101.elastic-ssl.ui-r.com
Mail Server IPs
- 154.59.104.23 ↩ fe2-r3-in.ams14.l.antispamcloud.com
- 2001:978:2:7::162:100 ↩ fe1-r3-in.fra02.l.antispamcloud.com
- 193.200.214.101 ↩ fe1-r4-in.ld0205.l.antispamcloud.com
- 2001:668:1f:ffa4::10 ↩ fe1-r4-in.ld0205.l.antispamcloud.com
- 154.59.193.124 ↩ fe3-r3-in.du01.l.antispamcloud.com
- 2001:978:2:6::f:124 ↩ fe3-r3-in.du01.l.antispamcloud.com
- 193.200.214.19 ↩ fe2-r4-in.ld0102.l.antispamcloud.com
SOA Record
Raw SOA
ns1.livedns.co.uk administrator.seamark.co.uk 1539954432 10800 3600 604800 3600
Primary NS (mname)
ns1.livedns.co.uk
Admin Email (rname)
administrator@seamark.co.uk
Serial
1539954432
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.livedns.co.uk
ns1.livedns.co.uk
ns3.livedns.co.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:31.121.40.202 include:spf.antispamcloud.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=reject; adkim=s; aspf=s; rua=mailto:dmarc@seamark; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=3600
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:dmarc@seamark
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- 1327ge7rneqo75s7otcm67e2v1
- 3rio0d75d2hkouluumgijvvibm
- rdavh42vclq8m014pdd8ag1u9l
- SPFv=spf1 ip4:31.121.40.202 include:spf.antispamcloud.com -all
- google-site-verification=bvAd2aJBVPbGL5HFVvc4kbM1oKT-F_t_3Ex-ABzUK2Y
- zone-ownership-verification-5bd76ad6dd9ddc305830713b06a80e78cd2ec60b9aff072ef3671e8b725c3f48
- v4tqke03sh66i5rr6c4mrruj5s
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for seamark.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits