Since updating iOS and Mac OS, i am having problems receiving emails. Normal emails seem to work fine... its SMTP emails that are generated by a server that are not coming through. They are taking as much as 4 hours to come through. This is affecting both a gmail account and a Yahoo account. My web host analyzed the headers for an email that came through 4 hours after it was sent.. and they told me that it had bounced around some relay servers. I have changed no settings... any help?