I was looking into this error and this has been caused by an upstream commit which is supposed to be an improvement for new users. More details at https://github.com/OfflineIMAP/offlineimap3/issues/41#issuecomment-778798223.
The attached patch should fix this. @Joey Hess It will be great if you test the patch and confirm if it fixes your problem. -- Regards Sudip
From df8565493613128fbc0ad2e9cbf476d4481853c1 Mon Sep 17 00:00:00 2001 From: Sudip Mukherjee <[email protected]> Date: Sun, 14 Feb 2021 16:22:30 +0000 Subject: [PATCH] Revert "Use system sslcacertfile by default" This reverts commit a4863b2f04adf25b9989bafbb9df21ea8b98a674. --- offlineimap/repository/IMAP.py | 19 +++++++------------ 1 file changed, 7 insertions(+), 12 deletions(-) diff --git a/offlineimap/repository/IMAP.py b/offlineimap/repository/IMAP.py index 56ebe74..06d77ab 100644 --- a/offlineimap/repository/IMAP.py +++ b/offlineimap/repository/IMAP.py @@ -296,15 +296,13 @@ class IMAPRepository(BaseRepository): def getsslcacertfile(self): """Determines CA bundle. - Returns path to the CA bundle. It is explicitely specified or - requested via "OS-DEFAULT" value (and we will search known - locations for the current OS and distribution). If it is not - specified, we will search it in the known locations. + Returns path to the CA bundle. It is either explicitely specified + or requested via "OS-DEFAULT" value (and we will search known + locations for the current OS and distribution). - If search route, via "OS-DEFAULT" or because is not specified, - yields nothing, we will throw an exception to make our callers - distinguish between not specified value and non-existent - default CA bundle. + If search via "OS-DEFAULT" route yields nothing, we will throw an + exception to make our callers distinguish between not specified + value and non-existent default CA bundle. It is also an error to specify non-existent file via configuration: it will error out later, but, perhaps, with less verbose explanation, @@ -315,10 +313,7 @@ class IMAPRepository(BaseRepository): xforms = [os.path.expanduser, os.path.expandvars, os.path.abspath] cacertfile = self.getconf_xform('sslcacertfile', xforms, None) # Can't use above cacertfile because of abspath. - conf_sslacertfile = self.getconf('sslcacertfile', None) - if conf_sslacertfile == "OS-DEFAULT" or \ - conf_sslacertfile is None or \ - conf_sslacertfile == '': + if self.getconf('sslcacertfile', None) == "OS-DEFAULT": cacertfile = get_os_sslcertfile() if cacertfile is None: searchpath = get_os_sslcertfile_searchpath() -- 2.30.0
