Sending files.
SIZE LIMITS
Mail servers limit attachment size.
Large files are rejected, frequently without a clear message.
WHAT TO DO WITH LARGE FILES
Share a link instead.
Cloud storage, or a file sharing service.
WHY THAT IS BETTER
No size limit The recipient downloads when convenient You can revoke access
WHAT TO BE CAREFUL WITH
Sending sensitive documents by email Sharing links publicly rather than to specific people
FOR CUSTOMER DOCUMENTS
Consider what the attachment contains.
Personal data sent by email persists in both mailboxes.
WHAT TO CHECK BEFORE SENDING
That the attachment is the right file That it does not contain more than intended
THAT LAST POINT
Spreadsheets with hidden rows, or documents with tracked changes.
WHAT TO AVOID
Attachments that trigger spam filtering: executable files, some archive types
WHAT TO TELL SENDERS
Your size limit, if people send you large files regularly.
