Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
summit.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 22:19:53 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-2.mimecast.com
- de-smtp-inbound-1.mimecast.com
MX Priorities
- de-smtp-inbound-2.mimecast.com: 0
- de-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 216.137.74.129 ↩ v90-129.ic.avalon.net
Mail Server IPs
- 194.104.110.22 ↩ de-smtp-inbound-1.mimecast.com
- 194.104.108.22 ↩ de-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-71.awsdns-08.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-71.awsdns-08.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1341.awsdns-39.org
ns-1878.awsdns-42.co.uk
ns-71.awsdns-08.com
ns-1019.awsdns-63.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:66.129.103.67 ip4:216.134.194.220 include:spf.protection.outlook.com ip4:204.141.42.241 ip4:170.10.132.222 ip4:170.10.132.148 include:spf2.summit.com include:us._netblocks.mimecast.com include:de._netblocks.mimecast.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
google._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- google-site-verification=AIWzS9ClnNNd36zrRqeTKWNdnTibLr3hZsL1wVbYa3o
- google-site-verification=oOtVimVt5Spvfow3_zK6qFH5N4_1jz9FtTaHfQBYnR4
- nitro-verification-code=ODA1NTgyNzE5OTEyNjkyMjY0Nw==
- smartsheet-site-validation=1bubjfJsAUF4XLikhmky77DLYNE0dr35
- SPFv=spf1 mx ip4:66.129.103.67 ip4:216.134.194.220 include:spf.protection.outlook.com ip4:204.141.42.241 ip4:170.10.132.222 ip4:170.10.132.148 include:spf2.summit.com include:us._netblocks.mimecast.com include:de._netblocks.mimecast.com -all
- zoho-verification=zb99657628.zmverify.zoho.com
- MS=ms486412760ed1fe018a533ccb6c188b4313a2425612d3ecdf56
- google-site-verification=3SR2L9RbjzWQwa3x6oxW1PdAr-BM60j9ziDNC6UtnXQ
Full email verification for summit.com
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