IMAP protocol for email router

Hi All,

Is Email Router for MS CRM 2015 support IMAP protocol?

I have follow this link

https://technet.microsoft.com/en-us/library/dn832099.aspx?f=255&MSPPError=-2147217396

Internet Message Access Protocol (IMAP) email servers are currently not supported with server-side synchronization or the Email Router

is there any way to make IMAP support in email router?

thanks.