We will be undergoing an infrastructure upgrade on Saturday, July 16, 2016 PST. The upgrade is intended to bring even more speed and reliability to our platform.
Our service will be offline starting at 9:00 pm PST on Saturday, July 16 (see your timezone here). We expect to be offline for approximately 6 hours.
During this time, you will not be able to log in, create or send email campaigns. Any scheduled or automated emails will be delayed until the maintenance window is over.
If you have additional questions, please reach out to our support team at help@createsend.com. Thank you for being a valued customer!

For more information : https://createsend.help/maintenance/