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[Validation & Sanitization](/categories/validation) 4. / 5. medienreaktor/form\_double\_opt\_in Abandoned → [linawolf/form\_double\_opt\_in](/?search=linawolf%2Fform_double_opt_in)Typo3-cms-extension[Validation & Sanitization](/categories/validation) medienreaktor/form\_double\_opt\_in =================================== Double Opt-In for the TYPO3 CMS Form Framework 13.2.3(1y ago)1413.3k23[6 issues](https://github.com/linawolf/form_double_opt_in/issues)GPL-2.0-or-laterPHP Since Sep 24Pushed 7mo agoCompare [ Source](https://github.com/linawolf/form_double_opt_in)[ Packagist](https://packagist.org/packages/medienreaktor/form_double_opt_in)[ RSS](/packages/medienreaktor-form-double-opt-in/feed)WikiDiscussions main Synced 2mo ago READMEChangelog (10)Dependencies (10)Versions (19)Used By (0) Form Double Opt-In ================== [](#form-double-opt-in) TYPO3 Extension adding Double Opt-In to the TYPO3 CMS Form Framework [Documentation](https://docs.typo3.org/p/linawolf/form_double_opt_in/main/en-us/) ### Health Score 43 — FairBetter than 91% of packages Maintenance48 Moderate activity, may be stable Popularity31 Limited adoption so far Community20 Small or concentrated contributor base Maturity63 Established project with proven stability Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~107 days Recently: every ~40 days Total 18 Last Release 224d ago Major Versions 2.1.1 → 3.0.02023-03-23 3.0.0 → 11.0.02023-04-29 11.0.0 → 12.0.02024-10-08 12.0.0 → 13.0.02024-10-23 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/3976405?v=4)[Daniel Kestler](/maintainers/danielkestler)[@danielkestler](https://github.com/danielkestler) --- Top Contributors [![linawolf](https://avatars.githubusercontent.com/u/48202465?v=4)](https://github.com/linawolf "linawolf (60 commits)")[![danielkestler](https://avatars.githubusercontent.com/u/3976405?v=4)](https://github.com/danielkestler "danielkestler (38 commits)")[![hojalatheef](https://avatars.githubusercontent.com/u/144037456?v=4)](https://github.com/hojalatheef "hojalatheef (20 commits)")[![t3brightside](https://avatars.githubusercontent.com/u/771791?v=4)](https://github.com/t3brightside "t3brightside (8 commits)")[![froemken](https://avatars.githubusercontent.com/u/2532472?v=4)](https://github.com/froemken "froemken (6 commits)")[![spoonerWeb](https://avatars.githubusercontent.com/u/1793083?v=4)](https://github.com/spoonerWeb "spoonerWeb (4 commits)")[![jonnsn](https://avatars.githubusercontent.com/u/575971?v=4)](https://github.com/jonnsn "jonnsn (2 commits)")[![Rathch](https://avatars.githubusercontent.com/u/35492663?v=4)](https://github.com/Rathch "Rathch (2 commits)")[![medarob](https://avatars.githubusercontent.com/u/33951787?v=4)](https://github.com/medarob "medarob (2 commits)")[![sbusemann](https://avatars.githubusercontent.com/u/3660954?v=4)](https://github.com/sbusemann "sbusemann (1 commits)")[![lochmueller](https://avatars.githubusercontent.com/u/3907126?v=4)](https://github.com/lochmueller "lochmueller (1 commits)") --- Tags formtypo3typo3-extension ### Code Quality Static AnalysisPHPStan Type Coverage Yes ### Embed Badge ![Health badge](/badges/medienreaktor-form-double-opt-in/health.svg) ``` [![Health](https://phpackages.com/badges/medienreaktor-form-double-opt-in/health.svg)](https://phpackages.com/packages/medienreaktor-form-double-opt-in) ``` ### Alternatives [pagemachine/typo3-formlog Form log for TYPO3 23225.3k6](/packages/pagemachine-typo3-formlog)[eliashaeussler/typo3-form-consent Extension for TYPO3 CMS that adds double opt-in functionality to EXT:form 1481.0k](/packages/eliashaeussler-typo3-form-consent)[linawolf/form_double_opt_in Double Opt-In for the TYPO3 CMS Form Framework 1412.8k](/packages/linawolf-form-double-opt-in)[netresearch/rte-ckeditor-image Image support in CKEditor for the TYPO3 ecosystem - by Netresearch 63991.3k4](/packages/netresearch-rte-ckeditor-image)[brotkrueml/typo3-form-rate-limit TYPO3 form finisher for rate limiting when sending a form 1157.6k](/packages/brotkrueml-typo3-form-rate-limit)[b13/assetcollector Add CSS and SVG files and strings as inline style tag/inline svg to the html code. 10118.4k](/packages/b13-assetcollector) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)