Your filters have exceeded the limit of 50 custom headers. Please edit the msgFilterRules.dat file, which contains your filters, to use fewer custom headers.
Mae eich hidlau wedi mynd dros y terfyn o 50 pennyn cyfaddasu. Golygwch y ffeil msgFilterRules.dat, sy'n cynnwys eich hidlau, i ddefnyddio llai o benynnau hidlo.