Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
s-u-l.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 17:44:36 UTC · ↺ Refresh
MX Hostnames
- sul-de0k.mail.protection.outlook.com
MX Priorities
- sul-de0k.mail.protection.outlook.com: 0
A / AAAA Records
- 85.236.47.199 ↩ server.filterverlag.de
- 2001:4178:2:1342:85:236:47:199 ↩ server.filterverlag.de
Mail Server IPs
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
a.ns14.net hostmaster.filterverlag.de 2024112000 43200 7200 1209600 600
Primary NS (mname)
a.ns14.net
Admin Email (rname)
hostmaster@filterverlag.de
Serial
2024112000
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
c.ns14.net
d.ns14.net
b.ns14.net
a.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- 201705080751485a0ka67ydpwwstyybilmc64f0eyc9sdfsptaubk3jonroxcen8
- 2017050807515331gwt6rvx8l2tg3zddp25p41rwlw7nilmxjahm28epka6y9v6t
- MS=ms80144525
- SPFv=spf1 include:spf.protection.outlook.com -all
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