Could anybody tell me how to request a delivery receipt on an individual email if possible?

Also I am trying to send an email with an attachment of 16.3 MB which will not send, keeps coming up with an error saying unable to deliver-try a different server or try again? Is this because the attachment is too big? If so is it possible to increase your limits?

I have tried doing this via my Mac and also by logging in online but neither seem to be working.

Thanks.
Good afternoon,

I am a new user on Mac, and we have just in my company start having a lot of these wonderful machines.
Unfortunately Outlook 2011 does not give the option for Read Receipts and Delivery Receipts, how can we fix this? Any work around?

This is quite an important feature for the work I do.

thank you

helena