Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
acr.org
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-28 15:42:47 UTC · ↺ Refresh
MX Hostnames
- cluster6.us.messagelabs.com
- cluster6a.us.messagelabs.com
MX Priorities
- cluster6.us.messagelabs.com: 10
- cluster6a.us.messagelabs.com: 20
A / AAAA Records
- 3.33.186.135 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
- 15.197.167.90 ↩ afa7f374f51cc8991.awsglobalaccelerator.com
Mail Server IPs
- 67.219.250.213 ↩ mail944.messagelabs.com
- 67.219.247.196 ↩ mail928.messagelabs.com
- 67.219.246.217 ↩ mail903.messagelabs.com
- 34.75.172.113 ↩ 113.172.75.34.bc.googleusercontent.com
SOA Record
Raw SOA
udns1.ultradns.net noc.acr.org 2013104263 86400 86400 86400 86400
Primary NS (mname)
udns1.ultradns.net
Admin Email (rname)
noc@acr.org
Serial
2013104263
Refresh
86400s
Retry
86400s
Expire
86400s
Minimum TTL
86400s
Nameservers (NS)
udns1.ultradns.net
udns2.ultradns.net
SPF Record
✓ Strict (-all)
v=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.ab.spf-protect.agari.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; aspf=s; fo=1; pct=0; ri=3600; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 0% of failing messages only
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 133 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
21 records- qf3dc4dqjv2918q639hnnjsl32d5gnv3
- SPFv=spf1 exists:%{i}._i.%{d}._d.espf.agari.com include:%{d}.ab.spf-protect.agari.com -all
- HrOORxX95jL+B0bP1CLwFS6NVdVT6qy4c8FPMEaY5dUNVAJlnXLw+wTxGS0x+Lm0RSrybOGqgl9nP3hBYC3l8A==
- Xmedius-verification=3f19616e3f35dacb2436d9a20d4dec1aa7bd6dac915cdbcfb48cdf92141a3480
- atlassian-sending-domain-verification=4ce781c2-c49a-40d8-a9b2-646c48962eee
- adobe-idp-site-verification=2a541ea84b305ead49224967089dbe2340d515bbae31a67453535a8fee64f804
- aj2vbk749genfbhtlj98kbvut2
- gfl838tmkc8ncfgjv46d2j078k
- docusign=d446242c-6ea1-4cde-82a0-060a14eb3ee8
- t0lm03k0q8m4j6hj90rljomico
- wh7x4cl6x64rnzjmkppsshggwzjq7rpd
- atlassian-domain-verification=vSRjN7p3V1uNbuVntwm56yvy3uS02SavjMLT4TGyKoPpEPaNj9xnzc8Fqup0OJIp
- google-site-verification=Z1H6rGsifh8gHwqy4JceSmBHiWblRERuBZ83WGj6YD8
- facebook-domain-verification=hqvzx1ddld7mdritgnpiqxu2aia5sa
- docusign=afb8351d-6f9c-45df-8df8-df6d895ae02f
- 2a541ea84b305ead49224967089dbe2340d515bbae31a67453535a8fee64f804
- lvfm2ffcr8riq5pbgf1vhosa0a
- ZOOM_verify_JygvuFCuQVypCwV9t9GeDw
- box-domain-verification=b98e26b2a281b8d504d65cb39b6a4f4b949c1e5022017c42ed7d30fb8198b656
- MS=ms97064408
- ifgoq11j7945nht0alss33fple
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 acr.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits