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<p dir="auto">On 14 Jan 2016, at 17:59, Joshua Kehn wrote:</p>
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<p dir="auto">I'm getting this error with an Exchange / Microsoft hosted (office365.com) account. I tried deleting the Drafts folder but that didn't appear to resolve it. Any ideas?</p>
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<p dir="auto">I'm guessing the problem is a message within the Drafts folder, but we'll have to verify that.</p>
<p dir="auto">We can get more information if you hold down ⇧ when clicking “Retry”. This generates a log file on your desktop which you can send to me. Send it off list, e.g., using “Help ▸ Send Feedback”.</p>
<p dir="auto">Exchange IMAP is very buggy and the error messages are useless. I recently did a workaround for <a href="https://freron.lighthouseapp.com/projects/58672/tickets/1322">an issue</a> related to long lines, but I don't think it's the same issue (not the same error number).</p>
<p dir="auto">Hmm, looking at the screenshot I can see that the server claims it's an “argument error”. The log file can show me if MailMate is to blame for that.</p>
<p dir="auto">-- <br>
Benny</p>
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