How to Adjust Mail Drop Minimum File Size Threshold for Mac Mail
Using Mail Drop allows you to send larger files over email than typically allowed by uploading the sent file to iCloud from Mail app in OS X, and then passing the link to download that file onto the recipient. The default MailDrop threshold for mail attachments is 20MB before kicking in and offering the service, but some email providers don’t allow files over even 10MB to be sent through their mail servers. Fortunately, with a little command line magic, you can change the file size limit before MailDrop is requested for transmitting a file.