We are upgrading our Kerio Email Server this evening from 7-11pm PST, during which time email services will be offline. Incoming mail will be queued and delivered once the new server is online. Outgoing email through smtp.dynamic.net will not be affected. If you use email.dynamic.net for your outgoing email, it will remain in your outbox. After services are restored, simply click the option in your email client to Send/Receive email now.
If you use Plesk or webmail.dynamic.net for your email services, you will not be affected.