private void EnableDisable()
{
textPrependSubjectText.Enabled = checkPrependSubject.Checked;
textSpamAssassinHost.Enabled = checkSpamAssassinEnabled.Checked;
textSpamAssassinPort.Enabled = checkSpamAssassinEnabled.Checked;
checkSpamAssassinMergeScore.Enabled = checkSpamAssassinEnabled.Checked;
textSpamAssassinScore.Enabled = checkSpamAssassinEnabled.Checked && !checkSpamAssassinMergeScore.Checked;
buttonTest.Enabled = checkSpamAssassinEnabled.Checked;
textUseSPFScore.Enabled = chkUseSPF.Checked;
textCheckHostInHeloScore.Enabled = chkCheckHostInHelo.Checked;
textUseMXChecksScore.Enabled = chkUseMXChecks.Checked;
textDKIMVerificationFailureScore.Enabled = checkDKIMVerificationEnabled.Checked;
}