Manash Kumar Pathak
Senior Email, Email Security, and Mobile Device Administrator
Kolkata
Summary
Dynamic Senior Email, Email Security, and Mobile Device Administrator with over 12 years of experience in managing enterprise messaging infrastructure, email security platforms, and mobile device management solutions. Proven success in migrating email systems from on-premises to cloud environments, transitioning MDM platforms, and securing communication channels with industry-leading tools. Expertise in implementing and maintaining RADIUS and SCEP infrastructure, with significant contributions to cloud migration projects such as Proofpoint TRAP (Threat Response Auto Pull). Strong knowledge of Proofpoint and Microsoft Defender ensures robust security measures and optimal performance across all communication channels. Self-motivated Team Lead brings proven leadership, organizational and customer relations skills. Independently solves problems and keeps teams on task to handle diverse business requirements. History retaining clients and talented staff.
Overview
14
14
years of professional experience
2
2
Languages
Work History
Email and Secured Email gateway Administrator
TATA CONSULTANCY SERVICES
01.2012 - Current
- Successfully migrated enterprise email infrastructure from on-premises Exchange to Exchange Online.
- Led the transition from MobileIron to Microsoft Intune for mobile device management across the organization.
- Implemented and maintained RADIUS and SCEP infrastructure for secure device authentication.
- Contributed to TRAP migration project, ensuring seamless transition to cloud-based architecture.
- Enhanced email security posture using Proofpoint, Exchange Online Protection, and Microsoft Defender.
- Developed PowerShell scripts for automated health checks and certificate renewals in Exchange environments.
- Worked on Incidents, Tasks and Change Requests.
- Upgraded rollups and cumulative updates in Microsoft Exchange server
- Managed Exchange server related activity on different version of Exchange servers
- Handled post migration issues in hybrid environment
- Successfully handled multi forest Exchange environment with different version of Exchange servers
- Created scripts to monitor day to day health checks of Exchange and windows servers
- Renewed Exchange servers’ certificate on different version of Exchange servers
- Managed Mobile device management platform like Mobile iron and Air watch
- Successfully upgraded Mobile device Management platform to latest version
- Created Label, policy, configuration on Mobile iron
- Published different platform application in Mobile iron
- Renewed APNS Certificate, Provision profiles of ios applications in mobile iron core
- Created policy route, firewall rules. Inbound, outbound routes in proof point
- Troubleshooted incidents related to mail flow in Proof Point
- Hands on Experience iron Mail, Cisco Iron Port
Education
Bachelor of Technology - Electronics And Communication
Gandhi Institute of Engineering And Technology
Gunupur, Odisha04-2012
HIGHER SECONDARY -
+2 Zila School
Dumka, Jharkhand04-2006
Skills
- Proficient in managing Exchange Online and on-premises servers
Software
- Microsoft Exchange 2010, 2013,2016
- Mobile Iron, Intune Mobile Device Management
- Proof Point
- Email Security (Exchange Online, EOP and Microsoft Defender)
- Microsoft Teams
- Apple Business Manager
- Apple Developer Site
- Microsoft Radius (Network Policy Server)
- Microsoft Internal PKI Certificate Management for Server and Client Authentication
Timeline
Email and Secured Email gateway Administrator
TATA CONSULTANCY SERVICES
01.2012 - Current
Bachelor of Technology - Electronics And Communication
Gandhi Institute of Engineering And Technology
HIGHER SECONDARY -
+2 Zila School
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