Hello,
On the edit imap section of helpdesk, I get the following warning. please advise.
Warning: imap_close(): 21 is not a valid imap resource in /home/eh/support.eh.com/class/class.imap.phpon line
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Warning: imap_close(): 21 is not a valid imap resource in /home/eh/support.eh.com/class/class.imap.phpon line 56
Most likely there is an error and imap_open returns FALSE which is not a valid resource to be passed to imap_close.
Please check your imap details, it probably can't connect and therefore the imap_close will return an error.