I sent a mail with 15mb attachement from my outlook (IMAP).   I do not where the mail goes.  The receipant has not received  and  I have NOT received any returned mail, saying it exceeds the attachment limit. What is the problem?

 

My question is

1. What is attachment size limit?  I am using my company domain

2. Should I receive any noice if it fails to deliver due to size of attachment?

3. Does Zoho have any plan to incease the attachement size limit?