Ntozier, I am also receiving the same error as mentioned above, after updating to 1.14.3
Info:
osTicket Version v1.14.3 (f4f5bc6)
Web Server Software Microsoft-IIS/10.0
MySQL Version 5.5.45
PHP Version 7.0.30
Mail fetch, pop. Server: Exchange Server 2016 CU18.
osTicket is having trouble fetching emails from the following mail account: User: EMAIL ADDRESS Removed Host: Local IP Error: Can't login to this server 53 consecutive errors. Maximum of 5 allowed This could be connection issues related to the mail server. Next delayed login attempt in aprox. 10 minutes