Question How to exclude certain files from Plesk updates (e.g. roundcube defaults file)?

[BernieG]

Hi,

It seems like every time I upgrade Plesk my Roundcube webmail SMTP stops working and I get this error "SMTP Error (535): Authentication failed.". I then have to go into the "defaults.inc.php" file and change

$config['smtp_auth_type'] = 'PLAIN';

to show

$config['smtp_auth_type'] = ' ';

then it starts working again and I'm able to send emails through Roundcube webmail again. How can I exclude updates to Roundcube so this doesn't keep on happening with each Plesk update? Or is there a way in Plesk to set smtp_auth_type = ' ' this way it doesn't happen anymore?

Thank you!