Check output amount.

[MuhammedZakir]

Hello, recently in Bitcointalk.org, a user send Bitcoin from Blockchain.info wallet and the change was less than the dust threshold. These transactions won't confirm in most cases. So I highly recommend you to put a warning when users push a transaction which have output(s) less than output threshold. Thank you!

Bitcointalk thread: https://bitcointalk.org/index.php?topic=1103347.0