v4.9

HKUDS/LightRAGv4.9Dec 11, 2025by lotkmm

AI Summary

BillionMail v4.9 adds email retention policies, DKIM record generation with flexible key lengths, and improves API capabilities for contact groups and tracking.

Key Highlights

Email Retention Policy Configuration
DKIM Record Generation (1024/2048-bit)
Configurable Tracking Options
Automatic Log Compression

New Features

Email Retention Days setting
Contact Group Selection in API
Disable tracking at campaign/global levels

Full Release Notes

## BillionMail v4.9

#### New Features

- Email Retention Policy Configuration
  Added an "Email Retention Days" setting to automatically purge sent email records older than the specified number of days, effectively controlling database size and disk usage.
- DKIM Record Generation with Long and Short Key Options
 The DKIM configuration now offers two key length options: Standard (2048-bit) and Compatibility (1024-bit), balancing security with compatibility for DNS providers that impose record length limits.
- API Email Sending with Contact Group Selection
You can directly specify to enter the "Contact Group" that has been created.
- Configurable Tracking Options
You can now disable open tracking and click tracking at either the campaign or global level to meet privacy compliance requirements or suit specific use cases.
- Automatic Log Compression and Cleanup for Core Service
Implemented automatic log rotation, gzip compression, and time-based cleanup for the Core service, significantly reducing disk usage during long-term operation.