your wallet does not support any sort of fee rate or does not allow setting custom transaction fees, you should upgrade to a new wallet. Go to Help Clear All Unconfirmed Transactions and restart Armory. When potential loss due to double spending as nominal, as with very inexpensive or non-fungible items, people may choose not to wait for a transaction to be confirmed, and complete the exchange as soon as it is seen on the network. So the bitcoin network can get unlucky and a block won't be found for a whole hour.
For maximum safety, it is recommended that for the irreversible sale of forex wie ermittelt man den wert eines ticks items with value comparable to the block reward, a large number of confirmations (144 blocks 1 day) is required before completing the exchange. This is less power-efficient but could be used for a brief burst of hashrate. You can use this formula: in *148 out *34 10 where in is the number of inputs and out is the number of outputs to estimate the size of your transaction and determine the optimal fee for. You must do this for each transaction you make otherwise you may end up paying a sub-optimal fee. Finney attack and race attack, but in some cases may still be acceptable especially for low-value goods and services, or ones which can be clawed back.