MXLIST.NET - spamfilter01.system4u.cz
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spamfilter01.system4u.cz checked at 2025-11-27T16:46:13.579Z 297ms 32/32/32 100% R:17 allDone:true timedOut:false spamfilter01.system4u.cz
| CNAME | 26gate4u.system4u.cz | ||||||
| A | 77.93.218.197🇨🇿 MASTER-AS | ||||||
| PTR | 26gate4u.system4u.cz | ||||||
system4u.cz
| NS | quentin.ns.cloudflare.com | ||||||
| NS | thea.ns.cloudflare.com | ||||||
| MX | system4u-cz.mail.protection.outlook.com | ||||||
| A | 37.9.175.163🇸🇰 Websupport | ||||||
MX for
AI analysis
spamfilter01.system4u.cz serves as the mail server for omegy.com, system4u.mobi, medispol.eu, omegy.cz and system4u.info.
spamfilter02.system4u.cz commonly serves as a mail server together with spamfilter01.system4u.cz.
spamfilter01.system4u.cz points to a single IP: 77.93.218.197.
Other host names, for instance 26gate4u.system4u.cz, share IP numbers with spamfilter01.system4u.cz.