Has any one a list available, how many confirmations are necessary for each coin on both exchanges?
I think this is what you need to find:
https://docs.google.com/spreadsheets/d/1Z08bzyoyZqVp9zLLvL8LU26X1NUw13c9fxNRKbedoJE/edit?usp=sharing
File > Make a copy...
That's the list for Bittrex on the first page and Poloniex is on the second page.
Nice spreadsheet, but maybe you should also bookmark the other 2 links (or this thread), because the number of confirmations changes sometimes. And ofcourse, the exchanges update their own info, but not that on the spreadsheet
