exchange server via activeSync

Good afternoon

Can someone help me in this situation, after migrating from xg SFOS 17.5.12 MR-12 to SFOS 18.0.1 MR-1-Build396, I get the following error when connecting to the exchange server via activeSync, before it was working properly.

messageid = "17071" log_type = "WAF" log_component = "Web Application Firewall" user = "-" ??????? "src_ip =" *. *. *. * "local_ip =" *. *. *. * "protocol =" HTTP / 1.1 "url =" / Microsoft-Server-ActiveSync "query_string ="? Cmd = Ping & User = ?????????? & DeviceId = androidc623733605 & DeviceType = Android "cookie =" - "referer = "-" method = "POST" response_code = "403" reason = "WAF Anomaly" extra = "Inbound Anomaly Score Exceeded (Total Score: 0)" content_type = "text / html" user_agent = "Android-Mail / 2020.05.17.313130477 .Release "response_time =" 1141 "bytes_sent =" 429 "bytes_received =" 571 "fw_rule_id =" ** "

I have already placed the following Skip filter rules in the protection policy Exchange General

920300

920320

920420

950100

954120

954130

959100

980120

980130

980140

981021

981022

981175

981176

981200

981201

981202

981203

981204

981205

and it still doesn't work.

thank you