Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crestron.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:38:55 UTC · ↺ Refresh
MX Hostnames
- mxa-0016b001.gslb.pphosted.com
- mxb-0016b001.gslb.pphosted.com
MX Priorities
- mxa-0016b001.gslb.pphosted.com: 10
- mxb-0016b001.gslb.pphosted.com: 10
A / AAAA Records
- 74.179.241.220 (no PTR)
Mail Server IPs
- 67.231.156.134 ↩ mx0b-0016b001.pphosted.com
- 67.231.148.135 ↩ mx0a-0016b001.pphosted.com
SOA Record
Raw SOA
pdns81.ultradns.net admin.tzolkin.com 2017052060 3600 600 604800 60
Primary NS (mname)
pdns81.ultradns.net
Admin Email (rname)
admin@tzolkin.com
Serial
2017052060
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
60s
Nameservers (NS)
pdns81.ultradns.net
pdns81.ultradns.org
pdns81.ultradns.biz
pdns81.ultradns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
19 records- apple-domain-verification=Kc9TbqRPQAHFoBsMHfBc4fdWe9Jdg5FRB6VH1uchCSI
- ZOOM_verify_5Wj0XV5GQp2TTAaR1Q0ZDA
- google-gws-recovery-domain-verification=38777871
- atlassian-domain-verification=35x5ztOXQMEBb0nGbmNg3xC/wFUWOW3b4Eo6MBsNCi3QyMeAHZ+ql53KkRYDdTnM
- Yhshi+iz7/IPIfs89RGt0ZQcrfCFNt4Udbo2REU+GFhxX7Jj65BkROA4Y9yj3hb2VehLjGxlbNr0rIE29BHktw==
- 331oja8icm3llavks6pu6bcm9p
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- teamviewer-sso-verification=cabf145483b34876be56234552ce8614
- adobe-idp-site-verification=33551ba4-6323-452b-99d9-c5f23d0c9aa2
- pardot767943=df876f0adb604ccae6a9e73423a871a20bb39d8d3006446104d58e20457dc224
- google-site-verification=Nyq4uwpCpoEY4p6TQ23vY8bjhOj-oa6lMmDqFVzc_6k
- airtable-verification=a871cac3882e762507b8be938ec313d5
- docker-verification=a7756fb2-365b-40e5-86f6-3ea745787c47
- rid0hq9kD3uBbXg1JO3wcYeJGM
- anthropic-domain-verification-e83qc3=5xePXYrBKoqaJY2MbVIB1amR7
- _8jkbusyn97kes5ngrgtxm669suhscd9
- MS=ms76468389
- apple-domain-verification=VAoiDCYXINF5d2vN
- bw=ysh1B04zSEyPbd8cDIgYw6tmgz+mxG289Wo19CjHK2sh
Full email verification for crestron.com
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