Brightmail does not deliver email to Distribution group members

&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2530 " id&equals;"quads-ad2530" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;<h4>The Story<&sol;h4>&NewLine;<p>Note&colon; This article assumes you have Brightmail Gateway <&sol;p>&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2523 " id&equals;"quads-ad2523" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2526 " id&equals;"quads-ad2526" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2524 " id&equals;"quads-ad2524" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;<p>When you try to send an email to a particular Exchange Distribution group Group&commat;domain&period;com the result is either users don&&num;8217&semi;t exist or you might get the following error if you test with Microsoft Test connectivity online tool&period;<&sol;p>&NewLine;<h4>Error&colon;<&sol;h4>&NewLine;<p>The server returned status code 554 &&num;8211&semi; Transaction failed&period; The server response was&colon; 5&period;7&period;1 Delivery not authorized<&sol;p>&NewLine;<p>Other related errors<&sol;p>&NewLine;<p>&OpenCurlyQuote;554 5&period;7&period;1&colon; You are not allowed to connect’<&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;moh10ly&period;com&sol;wp-content&sol;uploads&sol;2020&sol;06&sol;clip&lowbar;image001-2&period;png"><img width&equals;"1028" height&equals;"658" title&equals;"clip&lowbar;image001" style&equals;"display&colon; inline&semi; background-image&colon; none&semi;" alt&equals;"clip&lowbar;image001" src&equals;"https&colon;&sol;&sol;www&period;moh10ly&period;com&sol;wp-content&sol;uploads&sol;2020&sol;06&sol;clip&lowbar;image001&lowbar;thumb-2&period;png" border&equals;"0"><&sol;a> &NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2528 " id&equals;"quads-ad2528" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine; &NewLine;<&sol;p>&NewLine;<h2>Cause&colon;<&sol;h2>&NewLine;<p>Because the group has been cached in the Symantec gateway with its old members&comma; The result could be an error that users don’t exist or delivery is not authorized&period; <&sol;p>&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2522 " id&equals;"quads-ad2522" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;<h2>Solution&colon;<&sol;h2>&NewLine;<p>To solve this problem&comma; You need to go to Brightmail gateway Administration &gt&semi; Directory Integration and click on your AD Directory &gt&semi; Advanced and hit on Clear Cache&period;<&sol;p>&NewLine;<p>This would cleared the cached group and take the most recently updated group and its members&period; <&sol;p>&NewLine;<p>This should resolve the problem&period; <&sol;p>&NewLine;<p><a href&equals;"https&colon;&sol;&sol;www&period;moh10ly&period;com&sol;wp-content&sol;uploads&sol;2020&sol;06&sol;clip&lowbar;image002&period;png"><img width&equals;"1028" height&equals;"709" title&equals;"clip&lowbar;image002" style&equals;"display&colon; inline&semi; background-image&colon; none&semi;" alt&equals;"clip&lowbar;image002" src&equals;"https&colon;&sol;&sol;www&period;moh10ly&period;com&sol;wp-content&sol;uploads&sol;2020&sol;06&sol;clip&lowbar;image002&lowbar;thumb&period;png" border&equals;"0"><&sol;a><&sol;p>&NewLine;<p>How to clear the DDS cache in Messaging Gateway<&sol;p>&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2531 " id&equals;"quads-ad2531" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;<p><a href&equals;"https&colon;&sol;&sol;eur03&period;safelinks&period;protection&period;outlook&period;com&sol;&quest;url&equals;https&percnt;3A&percnt;2F&percnt;2Fknowledge&period;broadcom&period;com&percnt;2Fexternal&percnt;2Farticle&percnt;3FlegacyId&percnt;3Dtech132131&amp&semi;data&equals;02&percnt;7C01&percnt;7Cmohammed&period;hamada&percnt;40adeo&period;com&period;tr&percnt;7C151c081ccde7484ce3d408d818e4c8d0&percnt;7C88a13a8a6c2f4dda819ec53cb8331bb6&percnt;7C0&percnt;7C0&percnt;7C637286718181893265&amp&semi;sdata&equals;usXdAOxSvLqAlCnTAU8Us47YlrYAseplJomqRx9SEto&percnt;3D&amp&semi;reserved&equals;0">https&colon;&sol;&sol;knowledge&period;broadcom&period;com&sol;external&sol;article&quest;legacyId&equals;tech132131<&sol;a><&sol;p>&NewLine;&NewLine;<&excl;-- WP QUADS Content Ad Plugin v&period; 2&period;0&period;92 -->&NewLine;<div class&equals;"quads-location quads-ad2527 " id&equals;"quads-ad2527" style&equals;"float&colon;none&semi;margin&colon;0px 3px 3px 3px&semi;padding&colon;0px 0px 0px 0px&semi;" data-lazydelay&equals;"0">&NewLine;&NewLine;<&sol;div>&NewLine;&NewLine;