Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
de.gt.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 20:20:23 UTC · ↺ Refresh
MX Hostnames
- de-smtp-inbound-2.mimecast.com
- de-smtp-inbound-1.mimecast.com
MX Priorities
- de-smtp-inbound-1.mimecast.com: 10
- de-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 165.160.13.20 (no PTR)
- 165.160.15.20 (no PTR)
Mail Server IPs
- 194.104.108.22 ↩ de-smtp-inbound-2.mimecast.com
- 194.104.110.22 ↩ de-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
pdns1.cscdns.net hostmaster.cscdns.net 2016092081 28800 7200 604800 14400
Primary NS (mname)
pdns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2016092081
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
14400s
Nameservers (NS)
pdns1.cscdns.net
pdns2.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 a:postman.merger.de a:sslmail.frommo.com ip4:20.107.116.220 include:de._netblocks.mimecast.com include:spf.crsend.com include:agenturserver.de include:spf.sendinblue.com include:sendgrid.net include:_spf.senders.scnem.com -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._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
10 records- atlassian-domain-verification=qI0Z6iil/Vm2aj0BQLE9D34fO5rai2B45f5Xq91HRtmtkdZ30a3/q9zqaVpoLkhC
- SPFv=spf1 a:postman.merger.de a:sslmail.frommo.com ip4:20.107.116.220 include:de._netblocks.mimecast.com include:spf.crsend.com include:agenturserver.de include:spf.sendinblue.com include:sendgrid.net include:_spf.senders.scnem.com -all
- MS=ms71442320
- swisssign-check=mWkqlNyVK1hAvO9VPVo801pJV6k
- Sendinblue-code:6ef1bdca0140128a0b0cdffd769c529f
- smartsheet-site-validation=eKShQ7_YtmqckGkyGom0jVTjEfdWWIW7
- teamviewer-sso-verification=86ed1ed9af2b4d49a4ca851f0aa4970d
- atlassian-sending-domain-verification=1a98832f-7f69-4c35-ab60-40a9ae4c9043
- PeopsKlOlRXw5c1OPt3JZoq+uGzwpcpoOQmYgK2nL2Q1jAb2vnENsJllZDyoFzqhsuAQLJNAPqV4yEL8dw6DZw==
- enjYb/hB1YNPRaT2OwpXAIIvL/qB8VnioOLhlsipkU14JOIGQedWILVlwaZMMv+SqgPi+mPkZk/CYLQof+PPZQ==
Full email verification for de.gt.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits