Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
astaup.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 13:58:59 UTC · ↺ Refresh
MX Hostnames
- smtpin2.uni-potsdam.de
- smtpin.uni-potsdam.de
MX Priorities
- smtpin.uni-potsdam.de: 10
- smtpin2.uni-potsdam.de: 20
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 141.89.64.18 ↩ smtpin.uni-potsdam.de
- 141.89.65.2 ↩ smtpin2.uni-potsdam.de
SOA Record
Raw SOA
ns1.variomedia.de support.variomedia.de 2026032795 28800 7200 1209600 3600
Primary NS (mname)
ns1.variomedia.de
Admin Email (rname)
support@variomedia.de
Serial
2026032795
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.variomedia.de
ns1.variomedia.de
SPF Record
✓ Strict (-all)
v=spf1 a:mout.rz.uni-potsdam.de a:smtpout.uni-potsdam.de a:smtpin.uni-potsdam.de a:smtpin2.uni-potsdam.de a:smtpout.astaup.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a:mout.rz.uni-potsdam.de a:smtpout.uni-potsdam.de a:smtpin.uni-potsdam.de a:smtpin2.uni-potsdam.de a:smtpout.astaup.de -all
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