Signature contains misplaced images in Signature Manager Outlook Edition

Scenario:

Occasionally, you notice that images in your signatures and/or message body are misplaced - for example, spurious resizing or a previously embedded image replaces the correct image.

Reason:

There are two possible reasons for this behavior, as summarized below.

Original image name clashes with an Outlook generated name

When creating a signature template, you used a simple image name - for example: image001.png. By default, Outlook changes the names of embedded images into the format: image001@someID, image002@someID, etc. and so on. If the name of your image happens to match one generated by Outlook, the images are swapped and displayed incorrectly.

Messages are sent using Samsung Galaxy S5 or Samsung Galaxy Note 3 with Android v. 5.0

Email clients on some mobile devices remove all CID elements in the message source. If a message thread includes multiple images, they will be available as attachments - but the last attached image will be inserted into every single empty CID element within the message thread.

Note: This is a known issue with Samsung Galaxy S5 or Samsung Galaxy Note 3 running Android v. 5.0, however the issue may be present with other devices.

Solution:

Solution information for both scenarios are summarised below.

Original image name clashes with an Outlook generated name

If you use Signature Manager Outlook Edition, avoid overly simple names (e.g. image001); instead use something that is likely to be unique.

Messages are sent using Samsung Galaxy S5 or Samsung Galaxy Note 3 running Android v. 5.0

This issue occurs independently of Exclaimer software.

If you wish to test this, simply disable Exclaimer signature policies on your server and then send a number of test emails (containing embedded images) back and forth between Outlook and one of the problem devices. In doing so, you will see the issue with images.