針對常用外掛標籤「newsletter sign-up form」的相關推薦的 1 款外掛工具如下：
LEAV Last Email Address Validator
外掛描述：an the ones mentioned above or is missing from our list, please contact us and we will gladly add support for it., Roadmap, Our goal is to make LEAV the most comprehensive email validation plugin f...
安裝啟用數： 50 | 作者：Dirk Tornow