Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
containerport.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:26:55 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-2.mimecast.com
- usb-smtp-inbound-1.mimecast.com
MX Priorities
- usb-smtp-inbound-2.mimecast.com: 10
- usb-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 89.106.200.1 ↩ edge.redirect.pizza
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns-766.awsdns-31.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-766.awsdns-31.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-275.awsdns-34.com
ns-766.awsdns-31.net
ns-1034.awsdns-01.org
ns-2030.awsdns-61.co.uk
SPF Record
✓ Soft Fail (~all)
v=spf1 include:usb._netblocks.mimecast.com ip4:66.181.73.232 a:smtp.containerport.com include:spf.protection.outlook.com include:sendgrid.net include:spf-us.emailsignatures365.com include:4535467.spf05.hubspotemail.net include:_spf.salesforce.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
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
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
8 records- docusign=9ebe2e69-a454-4f4a-af40-3c3355b6d9c6
- google-site-verification=Nyc6-3zyaMY3djrD48ww1mwh9iSKpMmlfqq2P_gYjDs
- SPFv=spf1 include:usb._netblocks.mimecast.com ip4:66.181.73.232 a:smtp.containerport.com include:spf.protection.outlook.com include:sendgrid.net include:spf-us.emailsignatures365.com include:4535467.spf05.hubspotemail.net include:_spf.salesforce.com ~all
- MS=ms21727459
- SSnh+Biva3+zpN4dk5FaV5LnGN9aKkFT1MvsLRaVDRMf7raE1Ovhvoc2nkY/lcOyxWbjeIrpUhdySuEaNx2u1g==
- apple-domain-verification=tfOW8bmlM7OnREc9
- cisco-ci-domain-verification=12c83bb46604557d63870e2d6bd16ac6fa6531f41df928540ecb76518506e105
- docker-verification=c6965047-ce4a-4874-93bf-61c03e334e6e
Full email verification for containerport.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits