fh-koeln.de

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
fh-koeln.de
Yes
โœ“ Yes
Unknown
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-27 23:06:17 UTC ยท โ†บ Refresh

MX Hostnames

  • smtp.intranet.fh-koeln.de

MX Priorities

  • smtp.intranet.fh-koeln.de: 10

A / AAAA Records

  • 139.6.10.199 โ†ฉ www-01-f5.cit-vip.FH-Koeln.DE

Mail Server IPs

  • 139.6.1.61 โ†ฉ lvs2.nz.FH-Koeln.DE

SOA Record

Raw SOA ns-iwz.nz.fh-koeln.de dns.fh-koeln.de 2026032702 10800 1800 1209600 3600
Primary NS (mname)
ns-iwz.nz.fh-koeln.de
Admin Email (rname)
dns@fh-koeln.de
Serial
2026032702
Refresh
10800s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

ns-iwz.nz.fh-koeln.de
ns-gwz.nz.fh-koeln.de
dns1.uni-koeln.de
dns-1.dfn.de

SPF Record

โœ“ Soft Fail (~all)
v=spf1 include:spf.dynect.net include:spf.cluster4.4hr.de include:spf.nl2go.com +ip4:139.6.1.61 +ip4:139.6.1.47 +ip4:139.6.1.48 +ip4:139.6.1.49 +ip4:139.6.1.50 ?ip4:139.6.0.0/16 ~all
๐Ÿ“Š DNS lookups: 3/10
~ Soft fail (~all) โ€” moderate enforcement

DMARC Record

โœ— p=none
v=DMARC1;p=none;rua=mailto:[email protected]
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ— None detected

No DKIM records found for common selectors โ€” your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • HARICA-ELCPF8ClDrWhqb02JA5
  • google-site-verification=4DI3JqRD2Ey1wPPG6NnV0CUMWodXKspfTn5yXMbS3W0
  • SPFv=spf1 include:spf.dynect.net include:spf.cluster4.4hr.de include:spf.nl2go.com +ip4:139.6.1.61 +ip4:139.6.1.47 +ip4:139.6.1.48 +ip4:139.6.1.49 +ip4:139.6.1.50 ?ip4:139.6.0.0/16 ~all
Free ยท No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts โ€” unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for fh-koeln.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits