Comment 9 for bug 737206

Upstream released a new version yesterday which seems to address this issue:

http://marc.info/?l=getmail&m=133444619906070&w=2

From the changelog:

Version 4.26.0
14 April 2012
    -switch to using BODY.PEEK in IMAP retrieval; I no longer see problems with
    this feature in my testing. If users experience incompatibility with any
    IMAP servers where 4.25.0 worked, please let me know.

There was a debian package uploaded today:

http://packages.qa.debian.org/g/getmail4.html