Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
chestonag.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-10 23:17:15 UTC · ↺ Refresh
MX Hostnames
- chestonag-ch.mail.protection.outlook.com
MX Priorities
- chestonag-ch.mail.protection.outlook.com: 0
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 52.101.185.12 ↩ mail-zrap278cu00304.inbound.protection.outlook.com
- 52.101.185.13 ↩ mail-zrzp278cu00205.inbound.protection.outlook.com
- 52.101.187.1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 52.101.185.14 ↩ mail-zr1p278cu00206.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::2 ↩ mail-zr1p278cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca3c:: ↩ mail-zrap278cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca3e::1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::1 ↩ mail-zrzp278cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com hostmaster.chestonag.ch 2019011101 3600 300 2419200 300
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
hostmaster@chestonag.ch
Serial
2019011101
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns3-03.azure-dns.org
ns4-03.azure-dns.info
ns1-03.azure-dns.com
ns2-03.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:_spf.ch-dns.net ip4:217.168.44.40/29 a:smtp02.nexanet.ch include:spf.emailsignatures365.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s;aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
29 records- duo_sso_verification=b4H82Wh5zuyX9DpoJ35czRFtQG3G77Ji1gN90bFKzRp2xUfSrjhFbm30skshZuon
- _vrelbu6ws18xdni8sxv6klhx7wsoowk
- 4w796tnv2mx2pk9r7nzvt0d3lf65c2v1
- _globalsign-domain-verification=EEzmEVb_YiQsadwwBUoQszT0KhkRXRWQUIVPfYC_Oq
- _oxakxzfdiirllxlx5hxzay9f8z6u6zc
- _o1xk3ob3uw7u0qo1857ld8ixdx2idbf
- _sw5dtm7o2as3imh585k0c175vgwzr9j
- _1f7stzpex3j4j6r18busx6vg0wkdm7c
- 7f07tx2fzzjs7mm0zlfvbwvgbw4vbt0m
- _34u1ob8ym1s4qtdgim4we6m5vxm7sxq
- _p3prtewv0p39kugphx8rgce92rxehy2
- _lrte8oameinbovs837tl3tnrjvndzae
- _y9hx3ae4o7o4hclaxq9qarab9jcacdi
- _bsh72ou0p4msuscs13067cpbc4p97nk
- _20ljbn35v20g7uoewai548jj5qgpgy2
- _q0jj7c614f6dyq2yoqjori7lq2jwh8e
- _fqpn2ehdnu237ml98ov4xvp49iljnma
- SPFv=spf1 a mx include:spf.protection.outlook.com include:_spf.ch-dns.net ip4:217.168.44.40/29 a:smtp02.nexanet.ch include:spf.emailsignatures365.com -all
- google-site-verification=TyPY4lnfFAW_5anDCLdQmmS45ZEu2sYrChlvw23c2IA
- swisssign-check=ZSGuxypwdX9HnYyFpOLe7nQEDp0
- _702tsf7g4akcvx13d0nzyse0yuqz0tg
- d6nd28k8k28sffgl61ym2sgzzh9kg4tx
- _9m16i67lntnoek3zkocnjttr6laiawc
- MS=ms13078330
- sophos-domain-verification=0c03898d84e63785339aa727b2e8012a55d0502951ed6fadd0d56b4502e761f4
- have-i-been-pwned-verification=dweb_iclq35elk1neoxs72v55ec95
- linkedin-site-verification=f41ff9e0-6981-4a74-9c1f-dc841883a50f
- _sxv0jxbitarglt2ru8b2s5v6r5skcde
- _hjnffk0zlpjqe4izj9wklwsvun5hna1
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 chestonag.ch
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits