Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
silverarc.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 12:50:40 UTC · ↺ Refresh
MX Hostnames
- silverarc-co-uk.mail.protection.outlook.com
MX Priorities
- silverarc-co-uk.mail.protection.outlook.com: 0
A / AAAA Records
- 35.178.67.193 ↩ ec2-35-178-67-193.eu-west-2.compute.amazonaws.com
Mail Server IPs
- 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
- 52.101.89.1 ↩ mail-lo0p265cu00201.inbound.protection.outlook.com
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1051.ui-dns.biz hostmaster.1und1.com 2017060144 28800 7200 604800 600
Primary NS (mname)
ns1051.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060144
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1076.ui-dns.com
ns1051.ui-dns.biz
ns1112.ui-dns.org
ns1052.ui-dns.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.kundenserver.de include:spf.protection.outlook.com include:_spf.perfora.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms31091040
- SPFv=spf1 include:_spf.kundenserver.de include:spf.protection.outlook.com include:_spf.perfora.net -all
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