No, you are NOT permitted to apply in that case.
No, you can not get a Myanmar eVisa for entrance through seaports.
The eVisa is only valid for single entry through one of 8 designated International Airports and Land Border Checkpoint.
Only single entry is permitted for Myanmar eVisa.
We will forward you an email from the Government of Myanmar with the details of your eVisa included in this email such as your application ID, visa number, and visa validity.