On Dec 6, 2012, at 01:47 , Lucky Nl <lists / ruby-forum.com> wrote:

> Am using Imap in ruby 1.8.7
> I got error ERROR  (12791)  System error (Failure) in my code.
> But not sure when this will be happen.
> Can anyone suggest when this error will be raise and how to reproduce
> this error.

If you look through the code of net/imap.rb you'll see that there is no =
occurrence of "ERROR" anywhere. Nor in digest nor ssl. You'll need to =
look at your backtrace and actually debug where this is coming from.