ista.com

Valid Email Server
Domain Lookup › ista.com

Domain Overview

DNS: ✓ 23h ago Checker: ✓ 23h ago
ista.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-11-10 14:09:17 UTC · ↺ Refresh

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MX Hostnames

  • ista-com.mail.protection.outlook.com

MX Priorities

  • ista-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 151.101.130.216 (no PTR)
  • 151.101.66.216 (no PTR)
  • 151.101.194.216 (no PTR)
  • 151.101.2.216 (no PTR)

Mail Server IPs

  • 52.101.185.21 ↩ mail-zrxpr05cu00105.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.73.126 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com

SOA Record

Raw SOA a.ns14.net hostmaster.twt.de 2026011968 43200 7200 1209600 86400
Primary NS (mname)
a.ns14.net
Admin Email (rname)
hostmaster@twt.de
Serial
2026011968
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

b.ns14.net
d.ns14.net
a.ns14.net
c.ns14.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.ista.com include:spf.mailjet.com include:spf.noris.net include:_netblocks.whiteimage.eu ip4:195.234.133.0/24 ip4:91.213.156.0/24 ip4:195.122.144.82 ip4:217.79.222.101 ip4:62.209.53.0/24 include:_spf.jpberlin.de -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

30 records
  • 202108112044275ziyz59y3k48qtkcnzi9j3km5iwum9gbtj6vyxuzjkeio77fn8
  • brevo-code:cffd33294b9eec89fbf9a31a219b3ef7
  • d365mktkey=wqMc5413t73AxgfvK9XkWGY82jVJBW1nDfNc2yz6Jssx
  • d365mktkey=DfIjUCJQ08IwKOCywWjRVmKxJT5RxEoMRHkWs5cl9Pwx
  • cywetadns-domain-verification=58086a193273f3a030e37f4d754cdc7d
  • jamf-site-verification=1IxhMvNSwImCqjQf-8RK8w
  • jD1Dk2mlrk8/woryklTNyCj+f1X97yop7WlzhG1i9mrC+Ie4ink07C5YHCxuLBkunOHheBIfP/AYeScKlevJHA==
  • google-site-verification=4IF3RBNkVEDvAImgNek2V2NoY3UPJERMh99QqBNZABo
  • anthropic-domain-verification-va04cb=44C5ZI079lAnDOhXUhhwN0Jan
  • 2021111501542541tq130gwchlsll2ff07ohw1aa31oxo4zavkeqz8zs1nz4w0yi
  • SPFv=spf1 include:spf.ista.com include:spf.mailjet.com include:spf.noris.net include:_netblocks.whiteimage.eu ip4:195.234.133.0/24 ip4:91.213.156.0/24 ip4:195.122.144.82 ip4:217.79.222.101 ip4:62.209.53.0/24 include:_spf.jpberlin.de -all
  • 6t/7ZNqWbWGEF9dMfAo50kWkX0mt54JL6CyJmaAreLxdyFHNTV8KPxqObEjW7rIDfSW//98YTI/xeOhvMdKeTA==
  • monday-com-verification=a3a-WtDAFA-dhNNyIjhafrsRKUCHYWcoaf78N5MzsJ8
  • iid-domain-verification=c192b8af-ca2a-4efd-b94f-3a39e2dd7450
  • figma-domain-verification=a8f3b75de8ea36cad824cc1240fb33264aa33aea8414cc1f42f55014dd28eaf5-1758098594
  • vpe=a655d00a
  • google-site-verification=dWwPg9QUZd6yBSWxSId6--FkwgqqUXxkq2OgskUyE7g
  • apple-domain-verification=YVUCyiyMSIy6NOsx
  • teamviewer-sso-verification=039eed6aed55455ca7b2e073e34a18ac
  • d365mktkey=dg7rCo3MSt5cOqmKDbpXBDtOSoNSqE60VxmVryClsoMx
  • stripe-verification=EACEB4651B14F1BB44E04F8FB9FFC4A3EA95B531070FDF7619B1C1C52C3A1B8D
  • atlassian-sending-domain-verification=c35527c1-1913-4f09-8209-b295b7679acf
  • knowbe4-site-verification=6e9c3711e7e6e43ba40532e403ea5e3b
  • openai-domain-verification=dv-UGBm3Nf9bnpl0DIQLM9ZCSA2
  • elevenlabs=i3HOSDowMlVItG0Mqkxoxz0lvOM-VGJLiXBDejczCvM
  • MS=03DEFA8246E7F36B7046688EC4D4259154F4834A
  • google-gws-recovery-domain-verification=54398846
  • atlassian-domain-verification=U4aJEdyz2FaexLjZKG6lqux48vzqPRMukPBaizdZ7T4an3BRBGsKZIrVSn78pELg
  • miro-verification=69b3945f40f46a1ca3b4e16fe58d049fea55422d
  • teamviewer-sso-verification=66031485c2c0494cb8b9ea8646b82b43
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