Over at the Hackvalue weblog, Armijn Hemel compares IMAP client performance
. He created 12,000 test emails and then looked at how well several clients (Evolution, KMail, Thunderbird, and Claws Mail) could download the messages as well as how they performed moving them between accounts. "In the past I have had to move quite a bit of mail around between IMAP servers, which usually worked just fine, apart from taking some resources. Other people I talked to had different experiences, including crashes and suspicions of emails being lost. This triggered the idea of testing a few graphical email programs for IMAP performance: how would they behave if you had a huge amount of mails that you wanted to move to a different account?
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