I'm using the free plan of zoho mail service, and one user has disbled outgoing mails because the user try to send a mail with too mucha address, and because of it, the user can't send mail.

I'm trying to enable it, but it shows me the message that only paid plan can do that.

My question is, the user can not send a mail anymore?, or it will be enabled to send after some days?, if not, how could I enable it again?.