Can't send group AT&T in Thunderbird 31.1.0 - Mozilla Support 1-888-521-0120Posted by rockey rosser on December 23rd, 2016 “Can't send group AT&T in Thunderbird 31.1.0 - Mozilla Support” If this problem comes to you as well then get in touch with AT&T Email Support Helpline Number team and get complete assistance from them. This issue is related to unsupported use of web browser in machine. AT&T does not support all web browsers. So, before working with AT&T make sure that you have support browser installed in your machine. You can gather this information from none other than AT&T support team. Also, if there will be any other reason of this issue then they will let you know about the same. Like it? Share it! More by this author |