Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
americanbus.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 21:00:01 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 96.45.83.227 ↩ redirection.dnsmadeeasy.com
- 96.45.82.15 ↩ redirection.dnsmadeeasy.com
- 96.45.83.126 ↩ redirection.dnsmadeeasy.com
- 96.45.82.170 ↩ redirection.dnsmadeeasy.com
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns10.digicertdns.com dns.digicertdns.com 2008011067 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2008011067
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns0.dnsmadeeasy.com
ns3.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns1.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 include:_netblocks.mimecast.com ip4:207.211.30.0/23 ip4:205.139.110.0/23 ip4:216.205.24.0/24 ip4:63.128.21.0/24 ip4:24.235.19.0/24 ip4:207.211.41.113 ip4:24.235.18.0/24 ip4:173.203.161.88/29 ip4:205.216.10.20 include:servers.mcsv.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
7 records- nintex.5c75665ea490da087b490ded
- SPFv=spf1 include:_netblocks.mimecast.com ip4:207.211.30.0/23 ip4:205.139.110.0/23 ip4:216.205.24.0/24 ip4:63.128.21.0/24 ip4:24.235.19.0/24 ip4:207.211.41.113 ip4:24.235.18.0/24 ip4:173.203.161.88/29 ip4:205.216.10.20 include:servers.mcsv.net -all
- 8EarH+O8dNiAhtKpKUMwlPP+deqVSiFsladyuuJ971MmR2zMsXdmXExo6cynrxcPFZdrzwGAY+p7tegYqb1IoA==
- sophos-domain-verification=6a81d6cfd40a6d9a3d3ee23cf8d3244b370722fc7d2bf060df87f9f11331955c
- ZA=N0Y9kXd8yYps4Gb5yaE5WQ==
- google-site-verification=f_yfjMokewfoFyVkuiptV4hzlxATxSMrcvVmR_QkJJA
- MS=ms25945250
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 americanbus.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits