Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
systems-express.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 21:08:33 UTC · ↺ Refresh
MX Hostnames
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 5
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 217.160.0.92 ↩ 217-160-0-92.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2e1 ↩ 2001-08d8-100f-f000-0000-0000-0000-02e1.elastic-ssl.ui-r.com
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 142.251.16.26 ↩ bl-in-f26.1e100.net
- 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
SOA Record
Raw SOA
ns1036.ui-dns.de hostmaster.1and1.com 2017020505 28800 7200 604800 300
Primary NS (mname)
ns1036.ui-dns.de
Admin Email (rname)
hostmaster@1and1.com
Serial
2017020505
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1093.ui-dns.com
ns1083.ui-dns.biz
ns1036.ui-dns.de
ns1067.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:81.136.208.21/32 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
1 record- SPFv=spf1 ip4:81.136.208.21/32 include:_spf.google.com ~all
Full email verification for systems-express.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits