Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
armstrongbank.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 16:54:22 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 172.64.145.110 (no PTR)
- 104.18.42.146 (no PTR)
- 2a06:98c1:3108::6812:2a92 (no PTR)
- 2a06:98c1:3104::ac40:916e (no PTR)
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1.jh-cf.com dns.cloudflare.com 2398881163 10000 2400 604800 1800
Primary NS (mname)
ns1.jh-cf.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398881163
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns2.jh-cf.com
ns1.jh-cf.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:mailgun.org include:us._netblocks.mimecast.com include:amazonses.com include:spfref.jackhenry.com include:mail2.emessenger-fd.com include:_external.pscu.com include:gateways.firstdata.com ip4:216.66.216.9 ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 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
8 records- duo_sso_verification=TvXI8Yg47WOFLmEOz11MdJMizXRasXMO2Fd7TMf1mhIVPyDfQDd4ZbUQiiENYm5A
- obqf2jluhv6i9riu7aecdkrm3v
- SPFv=spf1 mx include:mailgun.org include:us._netblocks.mimecast.com include:amazonses.com include:spfref.jackhenry.com include:mail2.emessenger-fd.com include:_external.pscu.com include:gateways.firstdata.com ip4:216.66.216.9 ~all
- 0ed1fe018ae8b7fd682d0b47dc96fca29576a0f773
- DZC
- MS=E319ACDD5E8DDCFD0D1B5189F11C3E78E3287AE9
- S1D3FVp
- cwd8089qvg8dlvy82lcm7f1cdydc79dk
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 armstrongbank.com
SMTP handshake, catch-all detection, SPF/DKIM/DMARC analysis, and Yahoo/Outlook verification.
Get 1,000 Free Credits