No, you do not pronounce [t]. Are you familiar with the international phonetic alphabet?

"Dee-poe" in American English, as Alison says. "Dep-oe " in British English. Nobody pronounces the the 't'. If you were to pronounce the 't', you probably wouldn't be understood.

No, the T is silent

You say "dee-poe"

If you google "depot dictionary", you will find many links to online dictionaries, such as Oxford and Cambridge, where you can listen to the American and British pronunciations.