Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oleroel.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 18:12:35 UTC · ↺ Refresh
MX Hostnames
- mailsec.protonmail.ch
- mail.protonmail.ch
MX Priorities
- mail.protonmail.ch: 10
- mailsec.protonmail.ch: 20
A / AAAA Records
- 104.21.20.247 (no PTR)
- 172.67.195.36 (no PTR)
- 2606:4700:3037::ac43:c324 (no PTR)
- 2606:4700:3032::6815:14f7 (no PTR)
Mail Server IPs
- 185.70.42.128 ↩ mail.protonmail.ch
- 176.119.200.128 ↩ mail.protonmail.ch
- 185.205.70.128 ↩ mail.protonmail.ch
- 185.205.70.129 ↩ mailsec.protonmail.ch
- 185.70.42.129 ↩ mailsec.protonmail.ch
- 176.119.200.129 ↩ mailsec.protonmail.ch
SOA Record
Raw SOA
ulla.ns.cloudflare.com dns.cloudflare.com 2396730332 10000 2400 604800 1800
Primary NS (mname)
ulla.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396730332
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ulla.ns.cloudflare.com
vern.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.protonmail.ch ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ 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
2 records- SPFv=spf1 include:_spf.protonmail.ch ~all
- protonmail-verification=c2f515e943e1898964089bc7afbe35c4dc33eebb
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