Domain Overview
DNS: ✓ 6d ago
Checker: ✓ 6d ago
my.rfums.org
Disposable
✓ Yes
Google
⚠ Yes
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-27 18:19:21 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- aspmx4.googlemail.com
- aspmx.l.google.com
- aspmx2.googlemail.com
- my-rfums-org.mail.protection.outlook.com
MX Priorities
- aspmx4.googlemail.com: 4
- aspmx2.googlemail.com: 3
- alt1.aspmx.l.google.com: 2
- aspmx.l.google.com: 1
- my-rfums-org.mail.protection.outlook.com: 5
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.16.27 ↩ bl-in-f27.1e100.net
- 2607:f8b0:4004:c23::1a ↩ yuiadrs-in-f26.1e100.net
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.50.13
- 2a01:111:f403:c946::1
- 2a01:111:f403:f910::
- 2a01:111:f403:c946::4
- 2a01:111:f403:f901::1
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:_spf.qualtrics.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; fo=1; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=7293008ADEAB666953CF5A6055F268B172CAB3A5
- SPFv=spf1 include:_spf.google.com include:_spf.qualtrics.com include:spf.protection.outlook.com ~all
- knowbe4-site-verification=c094132005de78d99a9b9c941d75df76
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 · Customize →
See demo & docs
Deep verification
Full email verification for my.rfums.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits