The late founder of Apple Steve Jobs once boasted that his company represented the chance for "freedom from porn" - it looks like the company took that to heart.
According to a report by Macworld, Apple is deleting emails from iCloud that contain the phrase "barely legal teen".
The term - used by pornographers to describe adult film stars who look close to 18 years old - is reportedly being automatically filtered by Apple's servers.
Macworld tested the report by sending an email about a "barely legal teenage driver" to another iCloud account. It was not sent, whereas another with the similar phrase "barely a legal" was delivered normally.
The magazine said that neither Siri or iMessage seemed to block the phrase.
The problem was found by a screenwriter who said he was unable to send a PDF with the phrase contained within it.
Apple told Macworld that the problem was connected to automatic spam filters.
"Occasionally, automated spam filters may incorrectly block legitimate email," an Apple spokesperson said. "If the customer feels that a legitimate message is blocked, we encourage customers to report it to AppleCare."