Do you know your Sender Score?

Find out your sender reputation. Learn how to improve it.

Want to check another IP or Domain? Enter the information below to get your score.

Sender Score Metrics for caltech.edu

?

  Sender Score

An IP is required to see a score.
Enter an IP above or click here to see your IPs

Sending Domain Information
MX Record
SPF Record
Whois Lookup
SSL Information
SSL Certificate
Owner caltech.edu
Issued by InCommon RSA Server CA
Valid Until 04/30/2023
Sending IPs
IP Address Hostname Volume Sender Score
40.107.244.82 mail-mw2nam12on2082.outbound.protection.outlook.com. VERY HIGH 97
40.107.92.86 mail-bn7nam10on2086.outbound.protection.outlook.com. VERY HIGH 98
148.105.10.122 mail122.sea172.mcdlv.net. VERY HIGH 99
40.107.94.70 mail-mw2nam10on2070.outbound.protection.outlook.com. VERY HIGH 97
40.107.220.42 mail-co1nam11on2042.outbound.protection.outlook.com. VERY HIGH 90
40.107.223.66 mail-dm6nam11on2066.outbound.protection.outlook.com. VERY HIGH 98
148.105.12.234 mail234.sea22.mcdlv.net. VERY HIGH 98
40.107.94.82 mail-mw2nam10on2082.outbound.protection.outlook.com. VERY HIGH 97
198.2.139.215 mail215.atl221.rsgsv.net. VERY HIGH 98
40.107.212.88 mail-bn1nam07on2088.outbound.protection.outlook.com. VERY HIGH 98
40.107.100.48 mail-bn8nam04on2048.outbound.protection.outlook.com. VERY HIGH 97
40.107.93.75 mail-dm6nam10on2075.outbound.protection.outlook.com. VERY HIGH 98
198.2.184.175 mail175.suw101.mcdlv.net. VERY HIGH 99
40.107.94.86 mail-mw2nam10on2086.outbound.protection.outlook.com. VERY HIGH 99
148.105.12.163 mail163.sea22.mcdlv.net. VERY HIGH 99
40.107.93.56 mail-dm6nam10on2056.outbound.protection.outlook.com. VERY HIGH 97
162.242.166.107 mail-relayf9d6f057.chios.panth.io. VERY HIGH 7
40.107.243.75 mail-dm6nam12on2075.outbound.protection.outlook.com. VERY HIGH 97
40.107.220.48 mail-co1nam11on2048.outbound.protection.outlook.com. VERY HIGH 98
40.107.94.45 mail-mw2nam10on2045.outbound.protection.outlook.com. VERY HIGH 97
40.107.243.77 mail-dm6nam12on2077.outbound.protection.outlook.com. VERY HIGH 97
40.107.102.42 mail-dm6nam04on2042.outbound.protection.outlook.com. VERY HIGH 98
148.105.12.252 mail252.sea22.mcdlv.net. VERY HIGH 99
131.215.116.43 neutrino.hep.caltech.edu. HIGH 94
205.201.129.29 mail29.wdc01.mcdlv.net. VERY HIGH 99
40.107.94.89 mail-mw2nam10on2089.outbound.protection.outlook.com. VERY HIGH 98
131.215.239.54 smtp4.caltech.edu. HIGH 99
40.107.223.74 mail-dm6nam11on2074.outbound.protection.outlook.com. VERY HIGH 98
142.4.8.17 142-4-8-17.unifiedlayer.com. VERY HIGH 11
198.2.130.117 mail117.atl91.mcsv.net. VERY HIGH 99
40.107.243.48 mail-dm6nam12on2048.outbound.protection.outlook.com. VERY HIGH 99
40.107.223.59 mail-dm6nam11on2059.outbound.protection.outlook.com. VERY HIGH 98
40.107.220.84 mail-co1nam11on2084.outbound.protection.outlook.com. VERY HIGH 98
198.2.129.164 mail164.atl81.rsgsv.net. VERY HIGH 99
78.143.254.172 delivery2.simplelists.com. VERY HIGH 99
40.107.220.89 mail-co1nam11on2089.outbound.protection.outlook.com. VERY HIGH 98
40.107.243.85 mail-dm6nam12on2085.outbound.protection.outlook.com. VERY HIGH 98
40.107.243.73 mail-dm6nam12on2073.outbound.protection.outlook.com. VERY HIGH 98
40.107.92.83 mail-bn7nam10on2083.outbound.protection.outlook.com. VERY HIGH 98
40.107.92.58 mail-bn7nam10on2058.outbound.protection.outlook.com. VERY HIGH 99
40.107.237.86 mail-bn8nam12on2086.outbound.protection.outlook.com. VERY HIGH 98
198.129.208.64 mx0.ligo-wa.caltech.edu. VERY LOW 0
198.2.175.14 mail14.suw151.rsgsv.net. VERY HIGH 99
40.107.94.55 mail-mw2nam10on2055.outbound.protection.outlook.com. VERY HIGH 97
40.107.244.71 mail-mw2nam12on2071.outbound.protection.outlook.com. VERY HIGH 97
40.107.102.58 mail-dm6nam04on2058.outbound.protection.outlook.com. VERY HIGH 98
198.2.141.148 mail148.atl241.mcsv.net. VERY HIGH 99
148.105.12.20 mail20.sea21.rsgsv.net. VERY HIGH 99
205.201.135.164 mail164.atl61.mcsv.net. VERY HIGH 98
40.107.212.50 mail-bn1nam07on2050.outbound.protection.outlook.com. VERY HIGH 98
198.2.183.21 mail21.suw13.rsgsv.net. VERY HIGH 99
40.107.101.44 mail-mw2nam04on2044.outbound.protection.outlook.com. VERY HIGH 99
40.107.101.88 mail-mw2nam04on2088.outbound.protection.outlook.com. VERY HIGH 97
205.201.135.126 mail126.atl51.rsgsv.net. VERY HIGH 99
40.107.101.59 mail-mw2nam04on2059.outbound.protection.outlook.com. VERY HIGH 99
40.107.95.71 mail-dm3nam02on2071.outbound.protection.outlook.com. VERY HIGH 97
40.107.243.54 mail-dm6nam12on2054.outbound.protection.outlook.com. VERY HIGH 97
40.107.243.82 mail-dm6nam12on2082.outbound.protection.outlook.com. VERY HIGH 99
40.107.243.66 mail-dm6nam12on2066.outbound.protection.outlook.com. VERY HIGH 96
40.107.243.63 mail-dm6nam12on2063.outbound.protection.outlook.com. VERY HIGH 97
205.201.130.137 mail137.wdc02.mcdlv.net. VERY HIGH 99
40.107.102.46 mail-dm6nam04on2046.outbound.protection.outlook.com. VERY HIGH 97
40.107.94.87 mail-mw2nam10on2087.outbound.protection.outlook.com. VERY HIGH 99
40.107.223.58 mail-dm6nam11on2058.outbound.protection.outlook.com. VERY HIGH 99
40.107.220.45 mail-co1nam11on2045.outbound.protection.outlook.com. VERY HIGH 98
40.107.92.88 mail-bn7nam10on2088.outbound.protection.outlook.com. VERY HIGH 98
40.107.100.56 mail-bn8nam04on2056.outbound.protection.outlook.com. VERY HIGH 97
40.107.244.74 mail-mw2nam12on2074.outbound.protection.outlook.com. VERY HIGH 97
40.107.236.40 mail-bn8nam11on2040.outbound.protection.outlook.com. VERY HIGH 82
40.107.237.71 mail-bn8nam12on2071.outbound.protection.outlook.com. VERY HIGH 97
198.2.175.141 mail141.suw161.rsgsv.net. VERY HIGH 99
39.53.180.27 HIGH 0
198.2.174.105 mail105.suw231.rsgsv.net. VERY HIGH 99
195.184.214.28 28.interset.donbass.com. VERY HIGH 4
69.163.136.70 listserver-hug.dreamhost.com. HIGH 96
40.107.93.54 mail-dm6nam10on2054.outbound.protection.outlook.com. VERY HIGH 97
40.107.94.53 mail-mw2nam10on2053.outbound.protection.outlook.com. VERY HIGH 99
198.2.129.199 mail199.atl81.rsgsv.net. VERY HIGH 99
40.107.223.72 mail-dm6nam11on2072.outbound.protection.outlook.com. VERY HIGH 97
40.107.93.68 mail-dm6nam10on2068.outbound.protection.outlook.com. VERY HIGH 98
40.107.243.52 mail-dm6nam12on2052.outbound.protection.outlook.com. VERY HIGH 98
40.107.101.89 mail-mw2nam04on2089.outbound.protection.outlook.com. VERY HIGH 98
40.107.100.55 mail-bn8nam04on2055.outbound.protection.outlook.com. VERY HIGH 99
40.107.95.49 mail-dm3nam02on2049.outbound.protection.outlook.com. VERY HIGH 98
40.107.94.80 mail-mw2nam10on2080.outbound.protection.outlook.com. VERY HIGH 99
131.215.243.194 ex-hybrid3.caltech.edu. MODERATE 99
40.107.93.65 mail-dm6nam10on2065.outbound.protection.outlook.com. VERY HIGH 97
40.107.92.62 mail-bn7nam10on2062.outbound.protection.outlook.com. VERY HIGH 98
40.107.237.52 mail-bn8nam12on2052.outbound.protection.outlook.com. VERY HIGH 98
40.107.220.76 mail-co1nam11on2076.outbound.protection.outlook.com. VERY HIGH 97
40.107.236.41 mail-bn8nam11on2041.outbound.protection.outlook.com. VERY HIGH 92
40.107.95.81 mail-dm3nam02on2081.outbound.protection.outlook.com. VERY HIGH 98
40.107.92.63 mail-bn7nam10on2063.outbound.protection.outlook.com. VERY HIGH 98
40.107.102.85 mail-dm6nam04on2085.outbound.protection.outlook.com. VERY HIGH 98
198.2.143.121 mail121.atl281.mcsv.net. VERY HIGH 99
148.105.12.135 mail135.sea22.mcdlv.net. VERY HIGH 99
176.35.4.13 176-35-4-13.xdsl.murphx.net. VERY HIGH 0
40.107.223.73 mail-dm6nam11on2073.outbound.protection.outlook.com. VERY HIGH 89
40.107.94.43 mail-mw2nam10on2043.outbound.protection.outlook.com. VERY HIGH 97
148.105.15.147 mail147.sea101.rsgsv.net. VERY HIGH 99
148.105.15.194 mail194.sea101.rsgsv.net. VERY HIGH 96
198.2.184.8 mail8.suw91.mcdlv.net. VERY HIGH 99
40.107.243.80 mail-dm6nam12on2080.outbound.protection.outlook.com. VERY HIGH 98
40.107.220.43 mail-co1nam11on2043.outbound.protection.outlook.com. VERY HIGH 99
40.107.102.51 mail-dm6nam04on2051.outbound.protection.outlook.com. VERY HIGH 97
40.107.212.85 mail-bn1nam07on2085.outbound.protection.outlook.com. VERY HIGH 98
198.2.182.17 mail17.suw15.mcsv.net. VERY HIGH 99
40.107.101.49 mail-mw2nam04on2049.outbound.protection.outlook.com. VERY HIGH 98
198.2.139.246 mail246.atl221.rsgsv.net. VERY HIGH 99
198.2.139.133 mail133.atl221.rsgsv.net. VERY HIGH 99
148.105.14.229 mail229.sea81.mcsv.net. VERY HIGH 99
40.107.220.67 mail-co1nam11on2067.outbound.protection.outlook.com. VERY HIGH 98
40.107.102.65 mail-dm6nam04on2065.outbound.protection.outlook.com. VERY HIGH 98
2.82.118.127 bl21-118-127.dsl.telepac.pt. VERY HIGH 8
45.164.140.139 45-164-140-139-fixo.netfast.com.br. VERY HIGH 13
40.107.220.60 mail-co1nam11on2060.outbound.protection.outlook.com. VERY HIGH 95
205.201.133.111 mail111.atl11.rsgsv.net. VERY HIGH 99
148.105.15.7 mail7.sea91.rsgsv.net. VERY HIGH 99
40.107.243.86 mail-dm6nam12on2086.outbound.protection.outlook.com. VERY HIGH 98
198.2.174.137 mail137.suw241.rsgsv.net. VERY HIGH 99
40.107.220.52 mail-co1nam11on2052.outbound.protection.outlook.com. VERY HIGH 98
40.107.94.78 mail-mw2nam10on2078.outbound.protection.outlook.com. VERY HIGH 99
40.107.94.52 mail-mw2nam10on2052.outbound.protection.outlook.com. VERY HIGH 88
40.107.244.68 mail-mw2nam12on2068.outbound.protection.outlook.com. VERY HIGH 98
40.107.244.85 mail-mw2nam12on2085.outbound.protection.outlook.com. VERY HIGH 98
131.215.228.6 cheme.caltech.edu. VERY HIGH 12
40.107.237.64 mail-bn8nam12on2064.outbound.protection.outlook.com. VERY HIGH 98
190.5.185.232 customer-190-5-185-232.megacable.com.ar. VERY HIGH 18
147.154.97.253 phxrelay.tbe.taleo.net. VERY HIGH 99
198.2.142.124 mail124.atl261.mcdlv.net. VERY HIGH 99
40.107.223.76 mail-dm6nam11on2076.outbound.protection.outlook.com. VERY HIGH 98
40.107.237.69 mail-bn8nam12on2069.outbound.protection.outlook.com. VERY HIGH 98
205.201.128.118 mail118.us4.mcsv.net. VERY HIGH 99
40.107.93.59 mail-dm6nam10on2059.outbound.protection.outlook.com. VERY HIGH 97
40.107.220.78 mail-co1nam11on2078.outbound.protection.outlook.com. VERY HIGH 97
40.107.244.88 mail-mw2nam12on2088.outbound.protection.outlook.com. VERY HIGH 97
119.193.69.93 VERY HIGH 6
198.2.143.81 mail81.atl281.mcsv.net. VERY HIGH 98
131.215.239.53 smtp3.caltech.edu. VERY HIGH 97
40.107.237.74 mail-bn8nam12on2074.outbound.protection.outlook.com. VERY HIGH 97
40.107.94.67 mail-mw2nam10on2067.outbound.protection.outlook.com. VERY HIGH 98
40.107.212.63 mail-bn1nam07on2063.outbound.protection.outlook.com. VERY HIGH 98
40.107.223.79 mail-dm6nam11on2079.outbound.protection.outlook.com. VERY HIGH 99
40.107.94.72 mail-mw2nam10on2072.outbound.protection.outlook.com. VERY HIGH 98
40.107.95.85 mail-dm3nam02on2085.outbound.protection.outlook.com. VERY HIGH 99
40.107.220.72 mail-co1nam11on2072.outbound.protection.outlook.com. VERY HIGH 98
40.107.101.41 mail-mw2nam04on2041.outbound.protection.outlook.com. VERY HIGH 98
40.107.244.66 mail-mw2nam12on2066.outbound.protection.outlook.com. VERY HIGH 97
95.91.226.174 ip5f5be2ae.dynamic.kabel-deutschland.de. VERY HIGH 11
40.107.92.80 mail-bn7nam10on2080.outbound.protection.outlook.com. VERY HIGH 97
142.4.204.181 mxgw.r4l.com. VERY HIGH 86
40.107.244.43 mail-mw2nam12on2043.outbound.protection.outlook.com. VERY HIGH 98
40.107.96.57 mail-sn1anam02on2057.outbound.protection.outlook.com. VERY HIGH 98
40.107.96.65 mail-sn1anam02on2065.outbound.protection.outlook.com. VERY HIGH 98
40.107.93.81 mail-dm6nam10on2081.outbound.protection.outlook.com. VERY HIGH 98
161.38.203.253 m203-253.mailgun.net. VERY HIGH 99
198.2.184.18 mail18.suw91.mcdlv.net. VERY HIGH 99
40.107.237.77 mail-bn8nam12on2077.outbound.protection.outlook.com. VERY HIGH 99
40.107.95.66 mail-dm3nam02on2066.outbound.protection.outlook.com. VERY HIGH 98
40.107.244.56 mail-mw2nam12on2056.outbound.protection.outlook.com. VERY HIGH 99
40.107.93.45 mail-dm6nam10on2045.outbound.protection.outlook.com. VERY HIGH 99
40.107.220.75 mail-co1nam11on2075.outbound.protection.outlook.com. VERY HIGH 98
131.215.239.46 smtp2.caltech.edu. HIGH 99
104.45.175.206 smtp5.cashnet.com. VERY HIGH 95
131.215.198.100 vela.caltech.edu. MODERATE 98
198.2.143.136 mail136.atl291.mcsv.net. VERY HIGH 99
198.2.174.123 mail123.suw231.rsgsv.net. VERY HIGH 97
40.107.94.85 mail-mw2nam10on2085.outbound.protection.outlook.com. VERY HIGH 98
40.107.93.66 mail-dm6nam10on2066.outbound.protection.outlook.com. VERY HIGH 97
198.2.174.116 mail116.suw231.rsgsv.net. VERY HIGH 99

Featured Resources

Report: Fundamentals of Email Marketing

This guide lays out the foundation of email marketing, giving you the insight you need to understand how email marketing works.

GET THE REPORT

Webinar: State of Email Live

Join us every month as we discuss email in today’s changing world. Each show, we'll share current metrics updates and changes as well as host guests from the industry.

REGISTER NOW

Case Study: Hickory Farms

Learn how this gourmet food retailer achieved a near 100% inbox placement rate and drove significant growth in revenue for their highly seasonal business.

READ THE CASE STUDY

We Know Email

We’re the experts in deliverability and driving results for your email marketing.
Let’s chat and find out how you can improve your email deliverability.

Request a Demo