Searching e-mail by size is now built in feature of GMail (see here: http://gmailblog.blogspot.com/2012/11/search-for-emails-by-size-and-more-in.html).

Project Description
A small utility that labels large e-mails on your gmail account.
This utility scan you gmail account, and adds labels to large e-mail so you can clean your mailbox and free space.

The labels this utility adds are:
Size 1M-2M
Size 2M-5M
Size 5M-10M
Size 10M-15M
Size 15M plus

Note: a single e-mail thread may get multiple labels if different e-mails of the thread fit different filters.

1. I had not problems using this utility, however, according to Google documentation if you transfer large amounts of data your account might be locked for 24h, see: http://mail.google.com/support/bin/answer.py?hl=en&answer=43692&topic=1669055&ctx=topic. Note that connecting Outlook to your account will transfer the same amount of data, so I don't THINK it will cause any problem.
2. The utility may need few hours to scan large gmail account. Processing time varies according to your connection. On not-so-fast connection I got 15K e-mails/hour.

To connect this utility to your gmail account you must enable IMAP on your account. See here from more information:

This utility uses MailSystem.NET MAPI library. For more information see:

Last edited Dec 31, 2012 at 9:06 AM by shporer, version 7