An anonymous reader writes: Apple is apparently performing some content-based iCloud e-mail filtering, resulting in e-mails that never arrive to their intended destination. As detailed by Macworld, e-mails that included a particular phrase, even in a zipped PDF file, were prevented from getting to the intended recipient. This was regardless of whether the message was from a known sender, indicating that Apple is placing a pretty judging eye on what passes through its servers.
The issue came to light when users began noticing that e-mails with the words "barely legal teen" were having trouble arriving in their iCloud inboxes from outside senders. E-mails with the phrase in the body, an attached PDF, or a zipped attached PDF were never delivered or even returned to the sender. Instead, they simply disappeared into the ether of a nebulous black box of a filter that Apple has never made known to its iCloud customers. E-mails sent from iCloud accounts with that phrase, however, made it through, as did replies to iCloud-sent e-mails that contained the phrase.