Hello Community,
my name is David Lorenz and i have a problem with the WAF from our customer. They use Exchange 2019 on prem. and users from a branch office in egypt have connectionproblems. I already have set some exclusions in the rules because of errors in the reverseproxy.log. But I dont know how to fix the following two errors in the log. The customer can not send mails via. outlook (without vpn). Maybe someone of you can help me with that. Thank you in advance!
Error 1:
[Mon Feb 13 09:49:37.176633 2023] [proxy_http:error] [pid 24317:tid 139956497209088] (70007)The timeout specified has expired: [client IP:64739] AH01102: error reading status line from remote server IP:443
[Mon Feb 13 09:49:37.176660 2023] [proxy:error] [pid 24317:tid 139956497209088] [client 79.238.124.63:64739] AH00898: Error reading from remote server returned by /Microsoft-Server-ActiveSync
Error 2:
[Mon Feb 13 09:49:43.264596 2023] [url_hardening:error] [pid 26971:tid 139956156503808] [client IP:54056] Hostname in HTTP request (IP) does not match the server name (a5b35025015e970d5f9e9db094a65d1e_redirect_ssl)
My WAF-Rule Autodiscover:
My WAF-Rule Mail:
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