Транзакция без комиссии может зависнуть. Но если отдаете отчет своим действиям, то
обойти можно:
(DISCLAIMER: You must have the installed version / the source installed version for this to work. Packaged exe files will not let you mess with the innards.)
1. BACKUP YOUR WALLET FIRST! Just in case.
2. Find the Electrum install folder
3. Navigate to ...\lib\bitcoin.py
4. Open it with a text editor that supports Lf line breaks (hint: Notepad for Windows does not. but WordPad (also comes with Windows) does)
5. Search the file for "MIN_RELAY_TX_FEE = 10000" or just "MIN_RELAY_TX_FEE"
6. Change 10000 to 1000.
7. This makes it so that you can send transactions with 0.00001 BTC fees. But you will still pay whatever is in preferences, so after saving and closing, don't forget to set your preference's fee to "0.00001 BTC per kB"
You can set "= 0" if you want to get rid of the minimum, but be warned that any transaction that is not eligible for a free transaction with a fee less than 0.00001 BTC will not be relayed by most nodes.
