ROLE OVERVIEW
We are looking for an experienced Mail Messaging Administrator to own our enterprise Zimbra mail infrastructure. You will manage clustered mail servers, maintain the mail gateway, troubleshoot delivery issues, and provide responsive user support ensuring zero-downtime, secure, and high-performance messaging for all users.
KEY RESPONSIBILITIES
- Administer Zimbra Collaboration Suite — user provisioning, domain management, mailbox policies, and upgrades
- Manage clustered mail infrastructure for high availability — MTA nodes, LDAP replication, and failover
- Configure and maintain the mail gateway — spam filtering, antivirus, DKIM, SPF, DMARC, and TLS policies
- Monitor mail queues, SMTP flows, and delivery logs; diagnose and resolve routing and delivery failures
- Troubleshoot client connectivity issues across Outlook, webmail, mobile (IMAP/POP3/ActiveSync)
- Handle mail archiving, retention policies, and compliance-related mailbox management
- Provide timely Level 2/3 user support for mail-related issues and escalations
- Maintain server health — disk capacity, backups, patching, and performance monitoring
REQUIRED EXPERIENCE & SKILLS
- 5+ years of hands-on experience in enterprise mail server administration
- Deep Zimbra expertise — ZCS administration, CLI tools, multi-server deployments, and troubleshooting
- Strong understanding of SMTP, POP3, IMAP, TLS/SSL, and email authentication protocols (SPF, DKIM, DMARC)
- Experience managing clustered / HA mail environments — MTA, MDA, and LDAP architecture
- Proficiency with mail gateway platforms for spam filtering, antivirus, and policy enforcement
- Linux administration skills for server management, log analysis, and scripting
GOOD TO HAVE
- Experience migrating mail systems or integrating Zimbra with Active Directory / LDAP
- Familiarity with email security standards and anti-phishing measures
- Knowledge of mail archiving and eDiscovery tools
Pay: ₹800,000.00 - ₹1,200,000.00 per year
Benefits:
- Health insurance
- Leave encashment
- Paid time off
- Provident Fund
Work Location: In person
