Error : SMTP Error:  5.7.1 Mail seems to be spam and will not be delivered. Please contact support. ID: dd89806e-e1b5-11e8-aa92-005056917658
If you see such an error when attempting to send mails, your e-mail account is in the spam blacklist. In that case, please update the e-mail password to a secure one and contact support via your support ticket system.