I already set up yahoo IMAP on my phone and I can retrieve and send emails w/o problem but only when connecting with my service provider's network (smart), but when connecting thru my phone's WIFI sa ISP ko dito sa bahay thru the router, I can't retrieve and send emails na using the Yahoo...

wala naman problema pag GMAIL IMAP ang ginagamit ko and ang connection is yun ISP ko thru the router...

any settings that I should change?