Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rb.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 23:03:39 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-2.mimecast.com
MX Priorities
- eu-smtp-inbound-1.mimecast.com: 10
- eu-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 35.244.255.146 ↩ 146.255.244.35.bc.googleusercontent.com
Mail Server IPs
- 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
- 91.220.42.201 ↩ eu-smtp-inbound-2.mimecast.com
- 195.130.217.201 ↩ eu-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ha1.markmonitor.zone hostmaster.markmonitor.com 2025112402 86400 3600 2592000 172800
Primary NS (mname)
ha1.markmonitor.zone
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2025112402
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s
Nameservers (NS)
ha3.markmonitor.zone
ha4.markmonitor.zone
ha1.markmonitor.zone
ha2.markmonitor.zone
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=9o54o0cs._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
28 records- SPFv=spf1 redirect=9o54o0cs._spf._d.mim.ec
- SFMC-kvnVJA_p_NuoCSCup0RsM0vN6Z2nEfVe6ClvdJ5V
- google-site-verification=xBqhKybIJVpc9j2K7caF-eoYF8wQINrgDBLy3RNEXqE
- workplace-domain-verification=wcaerVoO9ZkiK5hNyUzHXjrPVX7KMO
- adobe-idp-site-verification=2260283cb5deb19bbc9b6357e78ff67cc5071f813d907bfd70583e94089085dc
- klaviyo-site-verification=XvdiyV
- shopify-verification-code=fVx1B1dfy91iHwNLEswWZdCtQf2b4b
- _7x6wbkillk9ww53g4h6ihsa04z5wevo
- google-site-verification=NDczOnbeOkoDqTUCuYE-38byrh_A5rT5U6XUNvFTEIo
- dnL0QvckscDsgodnUxtF3qAE5H+3RKlbZKZFbJk3lVQgOIBfBhLP8rU3T8kDRtisBIL6nUK3OklBofewc2pRNg==
- google-site-verification=0Q1qjwfg2RTq_IEDPELMdOlHimtf57_HuvaxU_3kiZE
- jfecauvi3iebfk4ngkflbfdaq8
- MS=ms74350714
- SFMC-tUxP1vWE597iZ3zw0p9sZtLmuk4UI0ot7m-QgtnW
- google-site-verification=68BV81LNYuR90w6vsjkg86YvXba2A4QS5SuytfcTQhI
- m0qdnp1nsj5u3jnhk0relsa4ju
- google-site-verification=mHaVLcasgPFbm08B9rdW7uvKNw8_OEGdj-TfFv6jiSk
- atlassian-domain-verification=c3lT0nNM0Br2rRNjau5CJKubjDZPGFbB6oOl1HsKGeSIiTYCeB+lfh9eujFqujoo
- uq5gj35qutain1l0vik2bj6c02
- adobe-sign-verification=e578a19ceeca555e74df4df3c0dad490
- email-od.com
- google-site-verification=H9p4esykOO5u1z5nCalffilE3KAAg7nYbO8sNYrO5hE
- apple-domain-verification=CL4fVf4wkcqoOjfE
- hvd4v8812i3j754ovkkb3hbekc
- apple-domain-verification=PUjns7Vd0FkivIyk
- google-site-verification=874w-ilxO3Df2nWC7CZxQRHZEaD_MRvb8QNe98qhp-4
- teamviewer-sso-verification=9dea2db663f9408d9ee59b9c54d8e148
- google-site-verification=ylH_tjEb5LalMX-Tyix2Wr4MMe6QWCvqAOaMf2m0i-8
Full email verification for rb.com
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