https://spambrella.com/knowledge-base/v1/faq/how-does-spambrella-handle-attachment-based-and-image-based-spam/
How does Spambrella handle attachment-based and image-based spam? - Spambrella
Aug 19, 2026 - Dynamically classify imposter email. Preemptively identify and sandbox suspicious URLs and attachments.
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https://de.wordpress.org/plugins/multiform-anti-spam-image-captcha/
Multi-Form Anti-Spam Image CAPTCHA – WordPress-Plugin | WordPress.org Deutsch
Image CAPTCHA, honeypot and accessibility spam blocking for Gravity Forms, CF7, WPForms, Formidable, Elementor, WooCommerce, comments, and login.
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