Email Undeliverable: "maximum allowed line length is 998 octets"

Once in a while, you might get an email bounce back with an error which reads something like

550 maximum allowed line length is 998 octets, got 1012

This is due to a long-term bug in Microsoft Outlook. Some internal encoding in the email has become too long and some email servers are unable to handle it.

The only reliable way that we know to solve this is to:

  1. Open a new, blank email
  2. Open the mail you tried to send from your SENT folder.
  3. Copy the subject and contents of the mail you tried to send.
  4. Add back the recpients.
  5. Send the new email.

 

Was this answer helpful?

 Print this Article

Also Read

Error accessing email - especially Apple Devices

If you're getting an error on your Apple Device when trying to access email, this may be of some...

How do I change my mailbox password?

The Quick Way If you can remember your email password then the quickest way to update your email...

How do I add an email account?

If you have a domain associated with your hosting account which is registered with us then you...

How do I log on to my WebMail?

If you have registered a domain with us then you will be able to setup and use email accounts for...

Email setup - Android

Here are some tips to setting up email on your Android mobile phone or device. Go to the EMAIL...