Interspire Email Marketer Version 8.7.4 brings deliverability improvements, admin workflow improvements, a modernized interface, and continued reliability and security hardening across the platform.
Email Deliverability
New deliverability improvements:
- Quoted-Printable Encoding. Improved outbound email handling with quoted-printable encoding for better compatibility across email clients.
- DKIM Reliability. Improved preheader padding handling to reduce the risk of SMTP line-length issues affecting DKIM signatures.
- Embedded Image Handling. Improved encoding handling for emails with embedded images.
Token-Based Links
Optional token-based links for outbound email link workflows. When enabled, links in sent emails use token-based URLs instead of the legacy format.
Scheduled Email Queue Sorting
You can now sort your scheduled campaigns by Name, Subject, Mailing List, Date Scheduled, and Status. Previously the queue was unsorted, making it difficult to manage large send schedules. If you run multiple scheduled campaigns, this makes it much easier to find and manage upcoming sends at a glance.
Admin UI Modernisation
The admin interface has received a broad refresh focused on browser compatibility, cleaner interactions, and fewer legacy dependencies.
- jQuery 4
We’ve upgraded from jQuery 1.3.2 to jQuery 4.0.0. If you maintain custom addons, we recommend testing them after upgrading. - Modern Date Picker
Many date and time picker screens now use Flatpickr for a cleaner, more reliable experience across browsers. - Improved Drag & Drop
Survey builder and folder view interactions now use SortableJS for smoother, more consistent drag-and-drop behavior. - Better BuilderJS Support
BuilderJS now runs in an isolated iframe, preventing style conflicts between the editor and the admin interface. - Dynamic Content in Text Editor
The Dynamic Content dropdown has been restored in the text-only newsletter editor, so you can once again insert custom fields, unsubscribe links, and survey links when composing plain-text emails.
Performance
- Reduced multiple database query bottlenecks in campaign sending, cron processing, and statistics, improving bulk-operation throughput.
- Optimised autoresponder queue processing and bounce settings updates.
Security
Various security improvements.
Upgrade Notes
PHP 8.4 Compatibility
This release is compatible with PHP 8.4. Note that the php-imap extension is no longer bundled with core PHP as of 8.4 and must be installed separately via PECL. If your installation uses IMAP-based bounce processing, ensure the extension is installed before upgrading PHP. It will continue to work with PHP 8.3.
XML API
The XML API is now disabled by default. If you are using the API you must explicitly enable it.
After You Upgrade
Test XML API integrations if applicable.
Test scheduled sends and cron processing to confirm normal operation
Test custom addons. Addons using legacy jQuery APIs may need updating for jQuery 4 compatibility.
Notes for the upcoming releases
Support for POP3 bounce processing is going to be deprecated.
Support for MySQL 5.7 is going to be deprecated.
Support for Forward to a friend is going to be dropped.
