I’m marking this as fixed. The fix was to change the entries in the Roundcube config file\s from local host to 127.0.0.1 and the issue with the slow emails going etc - the solution is in Postfix - 30s delay in sending emails
I’m marking this as fixed. The fix was to change the entries in the Roundcube config file\s from local host to 127.0.0.1 and the issue with the slow emails going etc - the solution is in Postfix - 30s delay in sending emails