Set the maximum upload size for rainloop

rainloop/Dockerfile

@@ -5,8 +5,6 @@ RUN apt-get update && apt-get install -y \
 
 ENV RAINLOOP_URL https://github.com/RainLoop/rainloop-webmail/releases/download/v1.10.3.151/rainloop-community-1.10.3.151-aa8d0c41baec166a35bb9855ee3d07b9.zip
 
-RUN echo date.timezone=UTC > /usr/local/etc/php/conf.d/timezone.ini
-
 RUN rm -rf /var/www/html/ \
  && mkdir -p /var/www/html/webmail \
  && cd /var/www/html/webmail \
@@ -19,6 +17,7 @@ RUN rm -rf /var/www/html/ \
  && chown -R www-data: *
 
 COPY include.php /var/www/html/webmail/include.php
+COPY php.ini /usr/local/etc/php/conf.d/rainloop.ini
 
 COPY config.ini /config.ini
 COPY default.ini /default.ini

rainloop/config.ini

@@ -1,5 +1,8 @@
 ; RainLoop Webmail configuration file
 
+[webmail]
+attachment_size_limit = 25
+
 [security]
 allow_admin_panel = Off
 

rainloop/php.ini

@@ -0,0 +1,3 @@
+date.timezone=UTC
+upload_max_filesize = 25M
+post_max_size = 25M