My Oracle Support Banner

Open Email causes Com.sun.mail.util.DecodingException: BASE64Decoder: Error In Encoded Stream: hit EOF while looking for padding characters (=) (Doc ID 2313309.1)

Last updated on JULY 14, 2020

Applies to:

Oracle Email Center - Version 12.2.5 and later
Information in this document applies to any platform.


On : 12.2.5 version, Administration

When attempting to open an email in EMC,
the following error occurs.

The following error occurred:
javax.mail.MessagingException: ; nested exception is: com.sun.mail.util.DecodingException: BASE64Decoder: Error in encoded stream: hit EOF while looking for padding characters (=), the 10 most recent characters were: ".    No further information.

Contact your system administrator if the error persists.
Administrators may view page source for more technical information about this error.

The issue can be reproduced at will with the following steps:
1. Open Email in MS-Outlook. A pop-up appears, which asks, if I want to load the external content.
  a. Say "Yes" and forward email to Email Center: Email can't be opened and raises the error.
  b. Say "No" and forward email to Email Center: Email can be opened properly.




To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.