Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
issem.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 03:56:46 UTC · ↺ Refresh
MX Hostnames
- mxin3.webcontrole.com.br
- mxin1.webcontrole.com.br
- mxin4.webcontrole.com.br
- mxin2.webcontrole.com.br
MX Priorities
- mxin2.webcontrole.com.br: 10
- mxin1.webcontrole.com.br: 5
- mxin3.webcontrole.com.br: 15
- mxin4.webcontrole.com.br: 30
A / AAAA Records
- 45.163.74.92 (no PTR)
Mail Server IPs
- 62.210.26.90 ↩ pmg.webcontrole.com.br
- 45.173.221.60 ↩ hermes.dag.eti.br
- 177.101.123.42 ↩ hermes.netuno.com.br
- 51.159.199.127 ↩ pmg2.webcontrole.com.br
SOA Record
Raw SOA
dns6.webcontrole.com.br suporte.dag.net.br 2026032303 3600 1800 1209600 86400
Primary NS (mname)
dns6.webcontrole.com.br
Admin Email (rname)
suporte@dag.net.br
Serial
2026032303
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
dns7.webcontrole.com.br
dns6.webcontrole.com.br
SPF Record
✓ Strict (-all)
v=spf1 ip4:45.163.74.88/29 include:lists.dag.eti.br include:_spf.criaenvio.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=aATWVV4kOnE1rCJH_LgKFGD3icJu0SlygjY1Ei6bvpg
- SPFv=spf1 ip4:45.163.74.88/29 include:lists.dag.eti.br include:_spf.criaenvio.com -all
- MS=7D558C77A2F7DDFE92EFCD8CBF6A0A1FD160AE8E
- google-site-verification=0miIw0QUlpZU4sRemaxOjwS_Cpmtrz83jyztANIjgP8
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 issem.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits