If you have set up sub-addresses, sometimes referred to as aliases, for your main email address, you can use these for different purposes. This may be the case if you have a .me, .mac and a .icloud email address.

A post on Apple’s forum describes this problem and currently 81 other users say they have the same problem.

The forum post states: "Since updating to iOS 14 on my iPhone 11 when I select my preferred alias for the From field, the emails are being sent from one of the other aliases - but I don't know this is happening until the email is sent."

This could be a problem if you use one alias for private communication, the other for professional communication, and another for clubs, forums and so on. If you want to be sure that you always appear to the recipient in exactly the same way this error could undermine this.

As Mac & i report there is no longer certainty that the selected sender address will be the one that the recipient sees.

Having sent an email from the Mail app in iOS 14.0.1 that site reported that when they checked the Sent Mails folder a different alias had been used. Others have only found out that a different alias was used due to feedback from the recipient.

This does not only affect the email addresses that you can get from iCloud or Apple, but also others such as from Gmail or Mailbox.org, according to Mac & i.

As a result of the issue you may discover that your emails are ending up spam folders despite you being known by the recipient. Gmail may even be warning your recipient that your email may be a phishing attempt.

Our colleagues at Macwelt also ran a test on an iPad running Apple Mail under iOS 14.0.1 and found that no matter which alias they chose the email address that ended in ”me.com” was chosen every time.

The same attempt on the Mac did not show this problematic swapping of the selected return address.

Read about all the problems and the latest features in iOS 14. If you want to try out an alternative to Mail on the iPhone read this: Best email apps for iPhone.

This article originally appeared on Macwelt. Translation by Karen Haslam.