Error dragging eml file as attachment

Good morning,

I would like to ask what I am mistaking. I configured parameters.php file in this way: $paramAttachmentMaxSize = '‭128000000‬';
but either when I drag & drop directly from my email client (Thunderbird) or when attach email as an external eml file, I got this error: "file size exceeds 128000000 limit (paramAttachmentMaxSize)."

I'm working with Projeqtor under Windows 10 PRO, WAMP 3.1.7.

What's wrong?

Can you jelp me, please?

Thank you in advance

I followed your tip. In my php.ini max_post_size wasn't present, so I added it (and associated to 20 M size). I restarted all of the WAMP services (web server, PHP, MySql) and tried to drag and drop an email (whose size was less than 1 MB) but I got the same error.

Anything else to check in PHP configurations?

Thanks.