I get the following error on bounce test, even though the e-mail goes. Problem is the test section cannot read the POP3 account. Error is Call to undefined function, imap_open in ../enewsletter/enewsletter.php on line 1300 which is imap_open.
Why would you open POP3 with IMAP?
I am on Wordpress 3.4.2 MU, and current releases of your plugins. On shared hosting for GoDaddy, IMAP is not loaded, so we use POP3 instead. I have another application using POP3 and it does not have this problem (they do not use IMAP) the plugins us the core class-pop3 component built into WP.