Hello, i was wondering if it's possible to make my bots send the farmed mats to my main account once

bot's bag gets full. so i don't need to go back to city, empty my bag and go back to the farming place.

So it's always farming on it's own

If it's possible, how can i do it?

It's possible via the mailer settings.

However, I wouldn't do that, I'd simply send it to another character on the same account with guild bank access, that way you're not flagging another account should you get detected and banned.

Just make sure you log into that other character once or twice a day to deposit mats, so if you get banned you won't lose too much.