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Domain > checkupgrade.mailcenter-alerts.com
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More information on this domain is in
AlienVault OTX
Is this malicious?
Yes
No
DNS Resolutions
Date
IP Address
2025-08-22
13.236.127.131
(
ClassC
)
2025-12-21
16.176.237.249
(
ClassC
)
2026-01-20
13.239.106.143
(
ClassC
)
Port 80
HTTP/1.1 200 OKDate: Sun, 21 Dec 2025 11:53:55 GMTContent-Type: text/html; charsetutf-8Transfer-Encoding: chunkedConnection: keep-aliveVary: Accept-EncodingX-Frame-Options: SAMEORIGINX-XSS-Protection: !DOCTYPE html>html langen>head> meta charsetUTF-8> title>Proofpoint Security Awareness Training/title> meta nameviewport contentwidthdevice-width, initial-scale1> style> * { box-sizing: border-box; margin: 0; padding: 0; } html { height: 100%; } body { background: #F5F5F5; background: linear-gradient(#DDD,#CCC); height: 100%; padding: 100px 0; display: flex; flex-direction: column; justify-content: center; align-items: center; } a { color: #ED8B1E; } .content { background: white; box-shadow: 0 8px 0 -3px rgba(0,0,0,0.2); font-family: Calibri, Lato, Helvetica, Arial, sans-serif; font-size: 18px; line-height: 160%; margin: 0 auto; max-width: 800px; padding: 30px; } p { margin-bottom: 20px; } .logo { display: flex; justify-content: center; margin: 0 auto 30px; } .logo-styling { border-right: 1px solid black; padding-right: 5px; max-height: 40px; max-width: 194px; } .logo-text-styling { margin-left: 5px; text-align: left; line-height: 1; font-size: 20px; font-weight: bold; color: #333333; } /style> script typetext/javascript> window.do_not_detect_java true; window.tracking_id infopage; /script> script src/assets/ajax/libs/jquery/1.11.0/jquery.min.js>/script>/head>body> div classcontent> span classlogo> img classlogo-styling src/assets/psat_logo.png> span classlogo-text-styling>Phishingbr>Simulation/span> /span> p>Hi! This web site belongs to a hrefhttps://www.proofpoint.com/us>Proofpoint Security Awareness Training/a>. This domain is used to teach employees how to recognize and avoid phishing attacks. This page is here to let you know that this is not a malicious web page. The email that led you here was likely sent by your employer as part of a training program./p> p>If you have questions, you can contact your employer’s IT help desk. If you still have questions you can contact us at a hrefmailto:wst-support@proofpoint.com>wst-support@proofpoint.com/a>. /p> /div>/body>script src/assets/all.js?ginfopage>/script>/html>
Port 443
HTTP/1.1 200 OKDate: Sun, 21 Dec 2025 11:53:55 GMTContent-Type: text/html; charsetutf-8Transfer-Encoding: chunkedConnection: keep-aliveVary: Accept-EncodingX-Frame-Options: SAMEORIGINX-XSS-Protection: !DOCTYPE html>html langen>head> meta charsetUTF-8> title>Proofpoint Security Awareness Training/title> meta nameviewport contentwidthdevice-width, initial-scale1> style> * { box-sizing: border-box; margin: 0; padding: 0; } html { height: 100%; } body { background: #F5F5F5; background: linear-gradient(#DDD,#CCC); height: 100%; padding: 100px 0; display: flex; flex-direction: column; justify-content: center; align-items: center; } a { color: #ED8B1E; } .content { background: white; box-shadow: 0 8px 0 -3px rgba(0,0,0,0.2); font-family: Calibri, Lato, Helvetica, Arial, sans-serif; font-size: 18px; line-height: 160%; margin: 0 auto; max-width: 800px; padding: 30px; } p { margin-bottom: 20px; } .logo { display: flex; justify-content: center; margin: 0 auto 30px; } .logo-styling { border-right: 1px solid black; padding-right: 5px; max-height: 40px; max-width: 194px; } .logo-text-styling { margin-left: 5px; text-align: left; line-height: 1; font-size: 20px; font-weight: bold; color: #333333; } /style> script typetext/javascript> window.do_not_detect_java true; window.tracking_id infopage; /script> script src/assets/ajax/libs/jquery/1.11.0/jquery.min.js>/script>/head>body> div classcontent> span classlogo> img classlogo-styling src/assets/psat_logo.png> span classlogo-text-styling>Phishingbr>Simulation/span> /span> p>Hi! This web site belongs to a hrefhttps://www.proofpoint.com/us>Proofpoint Security Awareness Training/a>. This domain is used to teach employees how to recognize and avoid phishing attacks. This page is here to let you know that this is not a malicious web page. The email that led you here was likely sent by your employer as part of a training program./p> p>If you have questions, you can contact your employer’s IT help desk. If you still have questions you can contact us at a hrefmailto:wst-support@proofpoint.com>wst-support@proofpoint.com/a>. /p> /div>/body>script src/assets/all.js?ginfopage>/script>/html>
Subdomains
Date
Domain
IP
mfa.mailcenter-alerts.com
2024-09-19
54.79.106.205
alisha.mailcenter-alerts.com
2025-12-21
16.176.237.249
okta.mailcenter-alerts.com
2026-01-06
16.176.237.249
adobe.mailcenter-alerts.com
2025-07-11
13.238.127.63
checkupgrade.mailcenter-alerts.com
2025-12-21
16.176.237.249
package.mailcenter-alerts.com
2025-09-05
13.236.127.131
https.crowdstrike.mailcenter-alerts.com
2025-09-15
52.63.129.45
apple.mailcenter-alerts.com
2024-11-09
13.239.164.240
license.mailcenter-alerts.com
2026-01-06
52.62.166.166
booking.mailcenter-alerts.com
2025-03-02
13.238.92.13
anthonymak.mailcenter-alerts.com
2026-01-06
52.62.166.166
parcel.mailcenter-alerts.com
2025-03-06
13.210.153.204
team.mailcenter-alerts.com
2026-01-06
16.176.237.249
login.mailcenter-alerts.com
2024-11-09
13.239.164.240
ausaviation.mailcenter-alerts.com
2025-03-10
13.238.92.13
info.mailcenter-alerts.com
2026-01-06
52.62.166.166
transfer.mailcenter-alerts.com
2026-01-06
16.176.237.249
yammer.mailcenter-alerts.com
2025-03-09
54.79.138.198
canvas.mailcenter-alerts.com
2025-11-29
52.62.18.28
rewards.mailcenter-alerts.com
2024-09-19
54.79.106.205
orders.mailcenter-alerts.com
2024-09-19
54.79.106.205
reports.mailcenter-alerts.com
2025-07-09
13.238.127.63
qantasholidays.mailcenter-alerts.com
2025-09-10
13.236.127.131
copilot.mailcenter-alerts.com
2026-01-06
52.62.166.166
www.mailcenter-alerts.com
2024-09-19
54.79.44.51
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