Translate the form

After trying to solve the problem myself, I’ve found a (horrible but working) solution.
To translate the form (like the “name” label, or all the error messages like “warning, this email address is not valid” or something like that), you’ll have to modify all the .php files you’ll find with texts in english.
Most of it is found in alo-easymail_functions.php and alo-easymail-widget.php, so if you translate everything you can find in english into french (or whatever) in those files, it should work properly.
Though be careful when touching these lines, you could mess everything up.
Hope I’ve helped someone having the same problem.

Strange, the plugin should show automatically its texts in blog language.
So, if in your wp_config.php you set define ('WPLANG', 'fr_FR'); the plugin texts should be in French.
Please double check if the French translation file exists inside plugin folder. The file is: /wp-content/plugins/alo-easymail/languages/alo-easymail-fr_FR.mo

I had already changed this but nothing happened. The newsletters are written in french though. Just the widget form is still in english, even after this manipulation in wp-config.
But modifying alo-easymail_functions.php and alo-easymail-widget.php myself worked, even if you probably wouldn’t recommend this method as it could mess everything up.
But thank you a lot for replying! ??

(And if you figure out why it didn’t work I’m still curious, even if it is no longer necessary for me.)

Is there a multilanguage plugin activated on your blog? Maybe the issue could be a conflict or a wrong setup.
Sorry, I have no more ideas ??

No, I don’t have any multilanguage plugin on the blog..
But don’t worry, thank you very much for your help!