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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
caltech.edu
Issued by
InCommon RSA Server CA 2
Valid Until
05/29/2026
Sending IPs
IP Address    Hostname Volume    Sender Score   
40.107.244.122 mail-mw2nam12on2122.outbound.protection.outlook.com. VERY HIGH 74
50.31.40.20 o4.em.imodules.com. VERY HIGH 99
50.31.40.101 o5.em.imodules.com. VERY HIGH 99
50.31.61.73 o6.em.imodules.com. VERY HIGH 99
50.31.61.187 o2.em.imodules.com. VERY HIGH 99
50.31.61.193 o10.em.imodules.com. VERY HIGH 99
50.31.61.232 o8.em.imodules.com. VERY HIGH 99
69.163.136.70 listserver-hug.dreamhost.com. HIGH 99
91.234.234.172 delivery102.simplelists.com. VERY HIGH 99
128.120.33.229 mauve.ucdavis.edu. VERY HIGH 99
131.215.140.44 nuntius.cms.caltech.edu. VERY LOW 100
131.215.239.53 smtp3.caltech.edu. MODERATE 99
131.215.239.54 smtp4.caltech.edu. MODERATE 99
131.215.243.194 ex-hybrid3.caltech.edu. VERY LOW 100
142.4.204.181 mxgw.r4l.com. VERY HIGH 99
147.154.97.253 phxrelay.tbe.taleo.net. HIGH 97
148.105.11.61 mail61.sea31.mcsv.net. VERY HIGH 99
148.105.12.145 mail145.sea22.mcdlv.net. VERY HIGH 99
167.89.13.187 o7.mx.technolutions.net. VERY HIGH 97
167.89.25.12 o3.mx.technolutions.net. VERY HIGH 97
167.89.25.126 o1.mx.technolutions.net. VERY HIGH 96
167.89.34.105 o3.em.imodules.com. VERY HIGH 99
167.89.92.40 o1.dtdsendgrid.doublethedonation.com. VERY HIGH 99
168.245.14.77 o8.sg.sendclubmail.com. VERY HIGH 99
168.245.121.127 o6.sg.sendclubmail.com. VERY HIGH 97
168.245.126.209 o7.sg.sendclubmail.com. VERY HIGH 99
198.2.129.124 mail124.atl71.mcdlv.net. VERY HIGH 99
198.2.130.88 mail88.atl91.mcsv.net. VERY HIGH 98
198.2.131.233 mail233.atl121.mcsv.net. VERY HIGH 98
198.2.139.130 mail130.atl221.rsgsv.net. VERY HIGH 83
198.2.141.18 mail18.atl231.mcsv.net. VERY HIGH 98
198.2.141.253 mail253.atl241.mcsv.net. VERY HIGH 99
198.2.142.155 mail155.atl271.mcdlv.net. VERY HIGH 98
198.2.143.14 mail14.atl281.mcsv.net. VERY HIGH 98
198.2.143.152 mail152.atl291.mcsv.net. VERY HIGH 99
198.2.143.177 mail177.atl291.mcsv.net. VERY HIGH 96
198.2.143.189 mail189.atl291.mcsv.net. VERY HIGH 97
198.2.144.13 mail13.atl301.rsgsv.net. VERY HIGH 98
198.2.174.108 mail108.suw231.rsgsv.net. VERY HIGH 99
198.2.174.196 mail196.suw241.rsgsv.net. VERY HIGH 88
198.2.182.4 mail4.suw15.mcsv.net. VERY HIGH 99
198.2.182.8 mail8.suw15.mcsv.net. VERY HIGH 96
198.2.182.217 mail217.suw16.rsgsv.net. VERY HIGH 99
198.2.185.136 mail136.suw121.mcdlv.net. VERY HIGH 99
198.2.185.155 mail155.suw121.mcdlv.net. VERY HIGH 98
198.2.185.216 mail216.suw121.mcdlv.net. VERY HIGH 90
198.2.188.100 mail100.suw131.mcsv.net. VERY HIGH 99
198.37.152.133 o9.mx.technolutions.net. VERY HIGH 97
198.37.152.137 o8.mx.technolutions.net. VERY HIGH 97
198.37.152.151 o6.mx.technolutions.net. VERY HIGH 97
198.37.158.3 o1.em.imodules.com. VERY HIGH 99
198.37.158.230 o4.mx.technolutions.net. VERY HIGH 96
198.37.159.162 o2.mx.technolutions.net. VERY HIGH 97
205.201.128.76 mail76.us4.mcsv.net. VERY HIGH 98
205.201.128.110 mail110.us4.mcsv.net. VERY HIGH 98
205.201.129.59 mail59.wdc01.mcdlv.net. VERY HIGH 99
205.201.129.68 mail68.wdc01.mcdlv.net. VERY HIGH 98
205.201.130.167 mail167.wdc02.mcdlv.net. VERY HIGH 99
205.201.133.206 mail206.atl21.rsgsv.net. VERY HIGH 97
205.201.133.219 mail219.atl21.rsgsv.net. VERY HIGH 99
208.117.55.247 o7.em.imodules.com. VERY HIGH 99

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