On Friday, April 15th at approximately 11 PM, webmail.sonic.net will be temporarily unavailable while it is upgraded. We expect this to take approximately 1-1.5 hours to complete. Mail services such as IMAP and POP will remain available and webmail-beta.sonic.net can be used during this time to retrieve mail.
Please see this forum post for more information. If you haven’t already, we encourage you to try the beta and report any issues regarding features or functionality that you use in the current version. Please note that settings between beta and production are separate, but all mail and folders are synchronized between the two.