Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cottbusverkehr.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 14:58:17 UTC · ↺ Refresh
MX Hostnames
- mails.cottbusverkehr.de
MX Priorities
- mails.cottbusverkehr.de: 10
A / AAAA Records
- 185.62.149.42 (no PTR)
Mail Server IPs
- 77.235.177.27 (no PTR)
SOA Record
Raw SOA
ns1.c-srv.de isp.cosimo.de 2026022006 28800 7200 604800 3600
Primary NS (mname)
ns1.c-srv.de
Admin Email (rname)
isp@cosimo.de
Serial
2026022006
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns4.c-srv.net
ns1.c-srv.de
ns3.c-srv.net
ns2.c-srv.de
SPF Record
✗ Invalid
v=spf1 mx a ip4:77.235.177.25 ip4:77.235.177.26 ip4:77.235.177.27 ip4:178.254.4.101 ip4:77.235.172.133 ip4:77.235.172.134 ip4:74.125.206.27 ip4:142.251.36.206 a:webmail.cottbusverkehr.de a:mails.cottbusverkehr.de a:mail.cottbusverkehr.de a:gmail-smtp-in.l.google.com a:taxi-cottbus.de include:google.com include:spn-cottbusverkehr.de include:email.amazon.com include:amazon.com include:amazonses.com ~all
📊 DNS lookups: 12/10
— over limit!
⚠ Too many DNS lookups (12/10) — SPF will fail validation. Reduce include: statements.
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=0:d:s
~ Quarantine — good protection (failing mail goes to spam)
📋 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
1 record- SPFv=spf1 mx a ip4:77.235.177.25 ip4:77.235.177.26 ip4:77.235.177.27 ip4:178.254.4.101 ip4:77.235.172.133 ip4:77.235.172.134 ip4:74.125.206.27 ip4:142.251.36.206 a:webmail.cottbusverkehr.de a:mails.cottbusverkehr.de a:mail.cottbusverkehr.de a:gmail-smtp-in.l.google.com a:taxi-cottbus.de include:google.com include:spn-cottbusverkehr.de include:email.amazon.com include:amazon.com include:amazonses.com ~all
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