Drain0

Drain0 allows for substituion of byte values to be inserted into emails for NULL bytes, stray linefeeds, and stray carriage returns. By default, these byte values are replaced by spaces, though within the preferences of Drain0 individual functionality for these different byte values can be enabled and disabled, and the substitution byte values can be specified distinctly for each. No longer will users retrieving email from an EIMS server have "stuck" email when Drain0 is in use.