[Timeline]: On November 13, 2026, Bangkok Bank reported that its email system became temporarily unavailable. [Reason]: The email outage at Bangkok Bank was caused by a global Microsoft 365 service failure. [Status]: The email system of Bangkok Bank is currently unable to be used temporarily. [Action]: Bangkok Bank advised customers to contact relationship officers at any Bangkok Bank branch nationwide. [Action]: Bangkok Bank advised customers to contact the Business Office. [Action]: Bangkok Bank provided contact numbers 1333 or 0-2102-5555 via the Bangkok Bank call center for inquiries.