Got the following error while trying to reset exim configuration via WHM.
Error message from syntax check: 2012-11-01 16:25:09 Exim configuration error in line 1611 of etc/exim.conf.buildtest.work.gg44IbxpiNRr8DMO: “maildir_use_size_file” option set for the second time
Fix
delete maildir_use_size_file from file /usr/local/cpanel/etc/exim/matchcf/maildir_format
If you encounter with another error like
“quota_is_inclusive” option set for the second time
remove the line quota_is_inclusive from this file /usr/local/cpanel/etc/exim/matchcf/quota_directory too.