Port 7047Zimbra Conversion Server
Port 7047 is used primarily by the Zimbra Collaboration Suite's conversion server component, which facilitates document and attachment content conversion within the Zimbra environment. It enables the transformation of various file formats to ensure browser and client compatibility, supporting streamlined mail and collaboration workflows..
- transport
- tcp
- in transit
- cleartext
- assignment
- unofficial
- risk
- 4/10
- lookups
- 8,115
single transport
payload readable on path
used by convention
caution
rank 627 of 993 · top 63%
Technical Details
what runs on :7047The Zimbra Conversion Server is an auxiliary component in the Zimbra Collaboration Suite (ZCS), enabling the real-time conversion of documents and attachments into web-friendly formats. This allows end-users to preview a vast array of file types directly within their email clients or web interfaces, improving usability without relying on local applications.
Operating typically over port 7047 using TCP, the conversion server communicates with the main Zimbra mailbox server to receive content conversion requests. It handles various file types, including documents, presentations, spreadsheets, and images, converting them into HTML or other formats suitable for in-browser rendering, thus ensuring a consistent user experience across platforms.
This component is usually installed alongside Zimbra's core services or on dedicated nodes, depending on deployment size and scaling needs. While the port usage is relatively straightforward, integration between multiple Zimbra modules and external clients makes secure communication and access control essential.
Security Information
exposure of :7047risk score
4/ 10caution
worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.
email averages 3.9 across 42 ports — this one sits 0.1 above.
in transit
cleartext
credentials and payloads are readable by anyone on path
assignment
unofficial
used by convention, not registered — what answers here varies by deployment
reachable over
tcp
every listening transport is another surface to filter at the edge
security overview
Common security vulnerabilities associated with Zimbra Conversion Server include:
- Unauthorized Access: If the port is left open to untrusted networks, attackers might exploit weak authentication mechanisms to gain access or launch conversion server abuses.
- Injection Attacks: Malicious file uploads or crafted attachments may attempt to exploit file parsing vulnerabilities or perform code injection.
- Denial of Service: Large or malformed file conversions can overwhelm the service, leading to performance degradation.
Mitigations include:
- Network Segmentation: Ensure port 7047 is only accessible from trusted Zimbra components and administrative subnets.
- Authentication and Access Controls: Use strong authentication wherever possible, even for internal communications.
- Regular Updates: Keep Zimbra and conversion tools updated to mitigate known vulnerabilities.
- Monitoring and Logging: Track usage patterns and unexpected access attempts to detect potential abuse early.
- Input Validation: Implement strict filtering on accepted file types and sizes to prevent injection or DoS attacks.
Related Ports
the 8 most looked-up other ports in email — 42 ports carry that label.
| port | service | risk | |||
|---|---|---|---|---|---|
| :143 | IMAP | TCPUDP | caution | 20.7k | |
| :995 | POP3S | TCPtls | caution | 18.8k | |
| :109 | POP2 | TCP | caution | 17.9k | |
| :2096 | cPanel SSL Webmail | TCPtls | Web Services | safe | 17.4k |
| :110 | POP3 | TCP | caution | 15.5k | |
| :993 | IMAPS | TCPtls | caution | 14.5k | |
| :1352 | Lotus Notes RPC | TCP | caution | 12.3k | |
| :24 | Private Mail | TCPUDP | caution | 11.7k |
risk mix of the 8 listed
- safe13%
- caution88%
3 of 8 encrypted