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Sender Score

Results for IP address
12.34.56.789

Sending Domain Information

MX Record   
SPF Record   

SSL Information

SSL Certificate
Owner
circle-education.cz
Issued by
R13
Valid Until
02/01/2026
Sending IPs
IP Address    Hostname Volume    Sender Score   
5.104.22.230 mail.mu-vk.cz. HIGH 98
45.13.137.10 m1-out-mua-1.websupport.sk. VERY HIGH 56
45.13.137.14 m1-out-mua-5.websupport.sk. VERY HIGH 67
45.13.137.22 m1-out-mua-13.websupport.sk. VERY HIGH 66
45.13.137.26 m1-out-mua-17.websupport.sk. VERY HIGH 89
46.23.56.162 mail.mubl.eu. HIGH 97
46.28.105.100 w-smtp-out-4.wedos.net. VERY HIGH 99
46.28.105.101 w-smtp-out-5.wedos.net. VERY HIGH 99
46.167.203.2 linux1.tachov-mesto.cz. HIGH 99
46.255.225.202 gmmr-1.centrum.cz. VERY HIGH 87
46.255.225.205 gmmr-3.centrum.cz. VERY HIGH 85
46.255.227.203 gmmr-2.centrum.cz. VERY HIGH 83
46.255.227.205 gmmr-4.centrum.cz. VERY HIGH 97
62.168.21.68 elsy.elsynet.cz. HIGH 99
77.104.244.57 mail.chrastava.cz. HIGH 99
78.128.214.92 mail.muht.cz. HIGH 99
78.156.158.211 hmail.webhouse.cz. VERY HIGH 70
81.0.208.246 mailserver.sic.cz. VERY HIGH 89
81.0.252.211 out1.virusfree.cz. VERY HIGH 99
81.0.252.212 out1.virusfree.cz. VERY HIGH 99
81.91.87.83 smtp3.web4u.cz. VERY HIGH 99
83.167.244.154 smtp-tls-out-02.svethostingu.cz. VERY HIGH 53
83.167.244.184 smtp-tls-out-01.svethostingu.cz. VERY HIGH 99
88.86.119.79 ran09.vas-server.cz. MODERATE 98
88.146.232.99 muhmail.hustopece-city.cz. HIGH 99
89.29.49.3 mail.bohumin.cz. VERY HIGH 99
89.187.156.40 out2.virusfree.cz. HIGH 99
89.190.72.246 mail.muvrchlabi.cz. HIGH 99
92.62.231.182 fw2.muvodnany.cz. HIGH 99
93.89.157.11 mail.mesto-sobotka.cz. MODERATE 98
93.185.99.201 mta.vshosting.cloud. VERY HIGH 82
94.127.129.42 mu.zelbrod.cz. MODERATE 99
160.218.169.68 mailer2.quick.cz. VERY HIGH 99
176.62.171.36 mta-02.webnode.com. VERY HIGH 90
176.62.171.44 smtp-44.webnode.com. VERY HIGH 98
176.62.171.45 smtp-45.webnode.com. VERY HIGH 98
176.62.239.37 mail.votice.cz. HIGH 99
178.251.187.8 jaguar.blueboard.cz. VERY HIGH 97
185.12.196.66 phop.smtp.cz. VERY HIGH 98
185.16.81.104 mail.pozorice.cz. MODERATE 99
185.58.40.71 hosting.synetix.cz. VERY HIGH 58
185.62.111.11 mail.zabovresky.cz. HIGH 98
185.115.73.53 mail2.yellowpoint.cz. MODERATE 98
185.119.217.96 orlova.onice.io. HIGH 99
185.129.138.111 mxavas-out-1.forpsi.com. VERY HIGH 99
185.129.138.112 mxavas-out-2.forpsi.com. VERY HIGH 99
185.129.138.113 mxavas-out-3.forpsi.com. VERY HIGH 99
185.137.145.3 smtp1.hbnet.cz. HIGH 86
185.137.145.10 smtp3.hbnet.cz. HIGH 86
185.137.145.12 smtp5.hbnet.cz. HIGH 90
185.137.146.10 muhb.hbnet.cz. VERY HIGH 97
188.94.233.232 mail.kralovice.cz. HIGH 98
188.134.147.15 mail.rychnov-city.cz. HIGH 99
188.175.159.2 mail.frydlantno.cz. HIGH 99
193.35.102.108 ms10.mepnet.cz. VERY HIGH 82
193.35.102.109 ms11.mepnet.cz. VERY HIGH 85
193.85.27.197 mail.unicov.cz. MODERATE 99
194.31.191.196 client-194-31-191-196.net.netcore.services. MODERATE 99
194.228.41.112 backmx.iol.cz. VERY HIGH 99
213.226.208.3 ns.omegaplus.cz. VERY HIGH 99
213.235.84.228 mail.muvalmez.cz. HIGH 99
217.11.236.90 smtp.discretepost.com. VERY HIGH 67
217.16.180.223 czechproject.vshosting.cz. VERY HIGH 99
217.16.184.115 arsyline.vshosting.cz. VERY HIGH 68
217.198.120.43 smtp-forwards-1.zoner.com. VERY HIGH 85
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