User - MX Filter

Secure Joomla registrations with the User - MX Filter plugin. This free tool validates email domain MX records to block spam or invalid domains, plus configurable blacklists for problematic hosts (e.g., Outlook protection servers). Features include post-registration email protection and partial domain matching. Ideal for clean user databases and spam prevention.

Extension Page: User - MX Filter

User - MX Filter

Version 5.0.4 Stable

Joomla! 4.x Joomla! 5.x Joomla! 6.x

Released on: Thursday, 16 October 2025
Maturity Stable
Released on Thursday, 16 October 2025

Release notes

j6 compatibility release

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Version 5.0.1 Stable

Joomla! 4.0 Joomla! 5.0 Joomla! 5.1 Joomla! 5.2 Joomla! 5.3

Released on: Tuesday, 22 July 2025
Maturity Stable
Released on Tuesday, 22 July 2025

Release notes

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Version 5.0.2 Stable

Joomla! 4.0 Joomla! 4.1 Joomla! 5.0 Joomla! 5.1 Joomla! 5.2 Joomla! 5.3

Released on: Wednesday, 23 July 2025
Maturity Stable
Released on Wednesday, 23 July 2025

Release notes

Simplified domain/subdomain blacklist test

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Version 5.0.3 Stable

Joomla! 4.0 Joomla! 4.1 Joomla! 5.0 Joomla! 5.1 Joomla! 5.2 Joomla! 5.3

Released on: Saturday, 23 August 2025
Maturity Stable
Released on Saturday, 23 August 2025

Release notes

Fixed issue where invalid IP addresses are accepted as valid MX records.

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