{
# Only enable auth cache if SOGo is using CAS
my $sogo_auth = $sogod{'Authentication'} || 'cas';
if (lc $sogo_auth eq 'cas'){
  my $size = $dovecot{'AuthCacheSize'} || '5242880';
  my $ttl = $dovecot{'AuthCacheTTL'} || '7200';
  my $neg_ttl = $dovecot{'AuthCacheNegativeTTL'} || '0';
  $OUT .=<<"EOF";
auth_cache_size = $size
auth_cache_ttl = $ttl
auth_cache_negative_ttl = $neg_ttl
EOF
}
else{
  $OUT .= "# No auth cache as SOGo doesn't use CAS";
}
}