Mail in Apple iPhone 1.1.1, when using SSL, does not warn the user when the mail server changes or is not trusted, which might allow remote attackers to steal credentials and read email via a man-in-the-middle (MITM) attack.
https://exchange.xforce.ibmcloud.com/vulnerabilities/36845
http://www.vupen.com/english/advisories/2007/3287
http://www.securityfocus.com/bid/25856
http://securitytracker.com/id?1018752
http://secunia.com/advisories/26983
http://lists.apple.com/archives/security-announce/2007/Sep/msg00001.html