Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
smart-union.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 19:25:46 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 0
- usb-smtp-inbound-2.mimecast.com: 0
A / AAAA Records
- 52.73.142.76 ↩ smartweb301.aws.mtxgp.net
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
beau.ns.cloudflare.com dns.cloudflare.com 2399092009 10000 2400 604800 1800
Primary NS (mname)
beau.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399092009
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
fiona.ns.cloudflare.com
beau.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=7jqdligm._spf._d.mim.ec
📊 DNS lookups: 1/10
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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
22 records- dell-technologies-domain-verification=smart-union.org_bff10763-5407-481f-af83-067711242483_1764957030
- teamviewer-sso-verification=391bafa7cc8f40a9aab4465d9c47f707
- SPFv=spf1 redirect=7jqdligm._spf._d.mim.ec
- MS=ms57050691
- openai-domain-verification=dv-1cEIquIsvlGPGJJxa9pJ0zaX
- google-site-verification=BgA53nburLqeQRtzJGXD9Vow25Zw1Y9K2BxySSIXgsw
- ZOOM_verify_Y90ByGWKTbuz-j-g9Orl8Q
- dropbox-domain-verification=iozfg1l51z3o
- apple-domain-verification=IjZltJwkeuISDXeZ
- remarkable-domain-verification=3558843f-fd1e-4cb7-85fa-2d37ee7d16fc
- google-site-verification=kt5-pr4u3FaDwOyRgnQaYXSnfoQSV2IMVYZb_bUsqmA
- adobe-idp-site-verification=7c2f429cd3406cafba58811d609b3350b5de40475176610c16c2cfd24bfa54a4
- anthropic-domain-verification-k0y1fq=uE2lgzPKLFQLl8duIwdzFSN3n
- atlassian-sending-domain-verification=6ab1eac0-df21-42dc-9ff9-80ff03459b51
- paloaltonetworks-site-verification=59a5fd991313a5c52dc077626c30ea15fb8cf97878fbe30d697acd762da467b9
- google-site-verification=h_nGNGcu3JtVD95s5BqNS2AqQrJGiq-Y3eHSwbuZG8w
- atlassian-domain-verification=abSjBMbfa/4i/MOKzkCfWRUlln1blhchyq2xk5aTRB2HhuMVzIx5b1RWkKqNazTz
- g23gekbg88dt9qmb55djlpf3i8
- google-site-verification=Ge0Zuliv30gfPgCx8oQtE25bwAs8IvK2c3KeKRGOHck
- atlassian-domain-verification=S9oVElaSctPl3QcpiMZcoY7XfgvAU/SVRsEvgMrAzJJGolstlsB0xmGnrKlB6vJX
- bw=ohWkc1MyOYENrzHzuzEXYMyDRTBwjBPpvfLHdnhmjWAS
- smartsheet-site-validation=0ekq9g07aZIkJTRyoalvCDcbzeiuvDkf
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 smart-union.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits