Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
viessmann.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 06:32:42 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 160
- alt4.aspmx.l.google.com: 160
- alt2.aspmx.l.google.com: 155
- aspmx.l.google.com: 151
- alt1.aspmx.l.google.com: 155
A / AAAA Records
- 93.122.86.82
Mail Server IPs
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
SOA Record
Raw SOA
a.ns14.net do-not-reply.viessmann.com 2026010507 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
do-not-reply@viessmann.com
Serial
2026010507
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
c.ns14.net
b.ns14.net
a.ns14.net
d.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- adobe-idp-site-verification=d59748daa732a7b72ce1db725f2622a0f91baf82c804c8a3f42f7d920f33b32f
- apple-domain-verification=teCgtHHWJLeSYRQp
- bw=gDd9bSkb7NLDrFubNn2oJLASDMt70K5r9OaGNOKkz8mu
- MS=ms64588296
- lemontaps-domain-verification=29cfbe6599bece1b2c65f1f96dd29d9833bc623e773231efe7331c489dfa0a37
- openai-domain-verification=dv-GxL3vckcMTn92jxjxlk3lJVk
- docusign=57093cfd-c7a4-48a7-9400-37615cdf18b4
- lovable_verification=g5XDXvHQZRfry5wjZYIq
- anthropic-domain-verification-fhcgkk=22QbXP15yFUrl45eby1gHf33A
- SPFv=spf1 include:_spf.google.com -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 viessmann.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits