upside-education.ch

Valid Email Server
Domain Lookup › upside-education.ch

Domain Overview

DNS: ✓ 16d ago Checker: ✓ 16d ago
upside-education.ch
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-11 22:34:10 UTC · ↺ Refresh

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MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 10

A / AAAA Records

  • 185.76.237.171 (no PTR)
  • 2a00:1c98:60:1380::af06:f8cb

Mail Server IPs

  • 172.253.63.26 ↩ bi-in-f26.1e100.net
  • 172.253.63.27 ↩ bi-in-f27.1e100.net
  • 142.250.31.27 ↩ bj-in-f27.1e100.net
  • 172.253.122.26 ↩ bh-in-f26.1e100.net
  • 172.253.122.27 ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
  • 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
  • 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net

SOA Record

Raw SOA dns1.swizzonic.ch hostmaster.swizzonic.ch 2024121808 10800 3600 604800 86400
Primary NS (mname)
dns1.swizzonic.ch
Admin Email (rname)
hostmaster@swizzonic.ch
Serial
2024121808
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

dns2.swizzonic.ch
dns1.swizzonic.ch

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:spf.webapps.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

2 records
  • SPFv=spf1 a mx include:spf.webapps.net ~all
  • google-site-verification=eSaGZiS_RURneY-lxjxmedGa9NNnXhx178Xcus479Yw
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