Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
syna.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 20:37:04 UTC · ↺ Refresh
MX Hostnames
- syna-de.mail.protection.outlook.com
MX Priorities
- syna-de.mail.protection.outlook.com: 10
A / AAAA Records
- 104.18.35.108 (no PTR)
- 172.64.152.148 (no PTR)
- 2606:4700:4408::6812:236c (no PTR)
- 2a06:98c1:3106::ac40:9894 (no PTR)
Mail Server IPs
- 52.101.68.16 ↩ mail-db4pr02cu00400.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 52.101.73.24 ↩ mail-as8pr05cu00300.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
SOA Record
Raw SOA
ns0009.secondary.cloudflare.com hostmaster.adacor.net 2026030502 10800 3600 604800 3600
Primary NS (mname)
ns0009.secondary.cloudflare.com
Admin Email (rname)
hostmaster@adacor.net
Serial
2026030502
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns0166.secondary.cloudflare.com
ns0009.secondary.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:94.100.245.28 ip4:94.100.245.29 ip4:153.100.8.31 ip4:153.100.8.32 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; sp=none; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
17 records- MS=ms59503020
- MS=ms72391149
- QuoVadis=0bc86375-6f07-4057-9ad4-e0188fb4d84d
- QuoVadis=3e1bfb0c-1a2b-4224-a33a-99d4eb451ea2
- _ssj4srp1u917rly427j5jz3l9fsecpw
- _uyrucdkhnktx5i2idyr9o7u9c8a149u
- _vyiijm4ab7772ce9okjcfjloxi58qpw
- _zao7k453ivkqeenrj6ej5pf636gyan7
- apple-domain-verification=wGpeTwhCkaFcL3iW
- atlassian-domain-verification=khDfe2tNb4a3IlrXDB0Os7RNtf4vlHI9RTRXBXnvIOzJPt0/J5yOrlAbhy1mhUb3
- cisco-ci-domain-verification=5507a4fb4c221ae7072e486a74a4a6b1e5cf4778ec0fc38e16e50ae436faf26f
- cl8wk0vsdqpthdsn6l81yftkh2m970lx 7mbg2c0h2gzg3ww4b1q4z59wczj5z4tj xtrg8rj6wq6l385s0cbknjj155qzrfdn
- docusign=0f8eebe4-bd49-4a53-8796-c2330fcde1c3
- kqx7xswzvjlgdblhl3mqp2krs8ypb4nc
- SPFv=spf1 ip4:94.100.245.28 ip4:94.100.245.29 ip4:153.100.8.31 ip4:153.100.8.32 include:spf.protection.outlook.com -all
- D-TRUST=3JKQPBNM4ULRMYJ2FCNWAS9
- MS=ms47716241
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