Trouble sending large photo attachment

When I try to send a large photo attachment (JPEG) of 6.4 MB, the email hangs up in my outbox and the recipient receives several copies while the email continues to resend it. Although it still appears in my outbox, the recipient has received it (sometimes up to 170 times!). Is there a way to fix this?

Hello,

These things are almost always handled by your email server. Please check your server settings for a maximum attachment size and try increasing this limit to prevent this behavior.