Unprocessed transaction with spam spend input

[czaanja]

We are using Electrum server to send outgoing transactions from our system. Someone sent spam spends of 1 Satoshi onto our address, which then was used as an input for outgoing transaction and now this transaction and the following transactions do not get included in a block. Please help what can be done about this. Is our transaction http://btclook.com/txn/3e47cd79bbfc2f3f0a99ad506e3ab3b94c19d64d6d026989d408a6e4feb0acbe ever going to be included in a block?