Hi,
yes via /usr/share/z-push/tools/gab-sync/gab-sync.php -a sync and afterwards I synced the GAB in Outlook manually via the addin again. Still the old picture(s) in it.
I found in the ldap.propmap.cfg the following entry
# This enables GAB contact photos
# Please note that the MAPI property has a 4K size limit
# Larger images will not be shown
# Recommended sizes are either 96x96 or 128x128
# For AD, it is recommended to use thumbnailPhoto
# PR_EMS_AB_THUMBNAIL_PHOTO
#0x8C9E0102 = jpegPhoto
0x8C9E0102 = thumbnailPhoto
Maybe the 4K limit is the issue. I have to check that.