How to fix dovecot.index: modseq_hdr.log_offset too large

April 10, 2019 at 4:09 am (last edited April 10, 2019 at 4:09 am)

You need to remove broken index files.

Try to use cPanel script:

/scripts/remove_dovecot_index_files --user USERNAME

If doesn’t work remove them manually

find . -type f -name "dovecot.index*" -exec rm -fv {} \;

System then re-generate them again