I tried to send a fairly large file, here it says a maximum of 50MB. but when you click to send an error like the picture above, even though the file is under 10MB.
Then in php.ini is set 50MB too, please help ..? @aaPanel_Jose
Open the main configuration file of postfix ( /etc/postfix/main.cf ), then add the following parameters to the bottom of the configuration file and restart postfix.
message_size_limit = 51200000
Thank u very much.. It work 😄