I missed few important mail like a job offer letter. then I tested with two different Gmail accounts. I have sent 6 emails out of that I received only 3 emails and didn't receive delivery fail error also from Gmail.

Please fix this as soon as possible. because the sender will not get to know that their mail didn't receive by the recipient.

Sent mail from Gmail1:

Sent emails from Gmail2:

Received emails:

Thanks,

Piyush