I have this problem too. I filed it as bug #89474. Over in that ticket,
someone mentioned that this bug is already reported upstream as Bug
278383 (and has apparently been open for a couple of years).
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movemail problem
https://launchpad.net/bugs/51492
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ubuntu-bugs mailing list
ubuntu-bugs@l
*** This bug is a duplicate of bug 51492 ***
Yeah, this looks the same as Ubuntu #51492. I marked it as a duplicate.
** This bug has been marked a duplicate of bug 51492
movemail problem
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thunderbird: interval checking doesn't work for Unix mail account
https://launchpad.net/bugs/89474
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Public bug reported:
Binary package hint: mozilla-thunderbird
I have created a "Unix movemail" account in Thunderbird, to get emails sent
locally by cron jobs, etc.
I have "Check for new messages on startup" and "Check for new messages every
[1] minutes" turned on in the account settings, but