byak.de

Valid Email Server
Domain Lookup › byak.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
byak.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-19 09:34:15 UTC · ↺ Refresh

MX Hostnames

  • byak-de.mail.protection.outlook.com

MX Priorities

  • byak-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 78.47.98.182 ↩ dedi4320.your-server.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::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.m-online.net hostmaster.m-net.de 2026031700 3600 1800 3600000 600
Primary NS (mname)
ns1.m-online.net
Admin Email (rname)
hostmaster@m-net.de
Serial
2026031700
Refresh
3600s
Retry
1800s
Expire
3600000s
Minimum TTL
600s

Nameservers (NS)

ns4.m-online.net
ns1.m-online.net
ns2.m-online.net
ns3.m-online.net

SPF Record

✓ Soft Fail (~all)
v=spf1 a:mail.byak.de a:dedi4320.your-server.de ip4:212.114.247.239 ip4:78.47.98.182 ip4:136.243.166.247 include:spf.protection.outlook.com include:spf.w4ymail.at include:spf.sepa.at ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • 201709181245310pydml7oxmopgr22lapjw9hzyufmnm1zr746h3apt6vjblufur
  • MS=ms63879139
  • jhjwkf3vt35kck2y32xs96y95n9f3bpy
  • SPFv=spf1 a:mail.byak.de a:dedi4320.your-server.de ip4:212.114.247.239 ip4:78.47.98.182 ip4:136.243.166.247 include:spf.protection.outlook.com include:spf.w4ymail.at include:spf.sepa.at ~all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

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

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

No credit card required
Get 1,000 Free Credits