While sending SMS two checkmarks appear below the message. The first one is the 'sent' checkmark, and the second one is the 'delivered' checkmark.
When I send an MMS only the 'sent' checkmark appear. Why? I want to know if the person I sent the MMS as received it. Lot's of stock messaging apps don't receive MMS automatically, it demands for people to be with/put the mobile data on. Sometimes not even a message warns them that they have an MMS pending.
So please, can you had the sencond checkmark (the 'delivered' one) to MMS?

Thank you.