We are currently investigating reports of delayed mail. Our Operations team is looking into this with the highest priority. We will provide an update when we have more information available, thank you for your patience.
We experienced temporary availability for site login, Legacy Newsletter, Marketing Campaigns, and Transactional Template applications. These issues have been resolved at this time.
We apologize for any inconvenience this has caused. Please contact our support team with any questions: https://support.sendgrid.com