Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
swlb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 17:19:37 UTC · ↺ Refresh
MX Hostnames
- mail01.swlb.de
MX Priorities
- mail01.swlb.de: 10
A / AAAA Records
- 80.237.243.87 ↩ n80-237-243-87.cnet.hosteurope.de
Mail Server IPs
- 178.248.221.254 ↩ mail01.swlb.de
SOA Record
Raw SOA
dns1.lf.net hostmaster.lf.net 2026032104 86400 7200 604800 3600
Primary NS (mname)
dns1.lf.net
Admin Email (rname)
hostmaster@lf.net
Serial
2026032104
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns2.lf.net
dns1.lf.net
dns3.lf.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:fw01.swlb.de a:mail01.swlb.de a:mail.lf.net ip4:217.110.181.45 ip4:178.248.221.254 ip4:185.242.112.0/24 ip4:80.147.4.177 ip4:80.237.243.87 ip4:193.28.172.24 ip4:212.9.160.2 ip4:213.209.107.176/29 ip6:2a0a:51c0:0:0:0:1:2:0 ip4:62.55.182.68 include:spf.mailjet.com include:spf.sendinblue.com include:gipsprojekt.de include:amazonses.com include:_spf.sendnode.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 10/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- autodesk-domain-verification=XObhPj2Gpr2ZM7qE9Ngc
- SPFv=spf1 mx a:fw01.swlb.de a:mail01.swlb.de a:mail.lf.net ip4:217.110.181.45 ip4:178.248.221.254 ip4:185.242.112.0/24 ip4:80.147.4.177 ip4:80.237.243.87 ip4:193.28.172.24 ip4:212.9.160.2 ip4:213.209.107.176/29 ip6:2a0a:51c0:0:0:0:1:2:0 ip4:62.55.182.68 include:spf.mailjet.com include:spf.sendinblue.com include:gipsprojekt.de include:amazonses.com include:_spf.sendnode.com include:spf.protection.outlook.com ~all
- atlassian-sending-domain-verification=bcde9b9e-4a4a-4bef-968b-341d2f77c84f
- atlassian-domain-verification=rIk2fly00nhh0WH32nrxzD3DdlkA/ASPh0dqGDKzzfYJXswgBeAjQGmYzQF7d3uy
- O5JtDBnsfqF4NjJdRo7+WxVm2DeXkqTx8Rhii6BbQHMlX+C6xeCj7QytR0EC5MiNZk8cf1uxwTw4YxFgNdoN8Q==
- brevo-code:1bf632048dbbe9a2185db566f1146d12
- sendinblue-code:a30b7b197a28143abca6ce73ebaf340a
- MS=ms96238549
- google-site-verification=1eR1vwvuoi00J8vwAui8ks6S0Vz5DnTWcU-VhZuxRQE
- apple-domain-verification=KPfPz65PWkCpKYLm
- globalsign-domain-verification=oViFzH51IYUBwSh0GS3UfBFksVAae-wvMsSbz-6T35
- tldEOkzYu72IGpFPhT/LDQmtpcYEXFBv1VIQHDKsjXY=
- hpe-greenlake-domain-verification=6b64346f4f55354131556f62346f42516e7369395249644f344170566768374f
Full email verification for swlb.de
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