hmaddy Posted October 28 Share Posted October 28 Am using an older version of whmcs and it will work only with php74. i hosted my whmcs on a seperate dedicated server and the server have only this account. And am using external smtp for sending mails. i already configured the /etc/exim.conf.local file. but now the problem is its not working. when i select a test mail, whmcs throwing some error like " Validation Error: Could not instantiate mail function. Server is with cloudlinux 9.6 and using altphp74. 0 Quote Link to comment Share on other sites More sharing options...
Administrators WHMCS John Posted Thursday at 11:23 PM Administrators Share Posted Thursday at 11:23 PM Hi @hmaddy, Please begin your troubleshooting by referring to this guide: https://docs.whmcs.com/troubleshooting/troubleshoot-email/php-mail/could-not-instantiate-errors/ 0 Quote Link to comment Share on other sites More sharing options...
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