Relevant Products: G Suite Lite | Exclaimer Cloud Signatures for G Suite | Exclaimer Cloud Signatures for O365 | Signature Manager Exchange Edition | Signature Manager Outlook Edition | Signature Manager O365 Edition | Mail Disclaimers | Template Editor
You are using a signature template with images inside, however you find one of the following issues occur:
- The images from the signature appear as attachments or are removed on a forward / reply email
- The images display as a red X with a message that suggests the images have been removed or cannot be found
- The images do not appear, but there is a 'Click to download message' at the top of the email received in Outlook
- The images display a white box with a black border, on a forward / reply mail in Outlook
The cause of the issue can be determined, depending on how you have uploaded the images into the template and, which Exclaimer product you are using to build and manage the signature templates. There are two ways of adding images into the Signature Template:
Embedded Images - uploading an image directly from your desktop, into the template
Web Hosted Images - hosting an image on a public facing server and, using the hosted urls to link into the signature template
Some mail clients will strip out the embedded images when forwarding on and or, replying to emails. Known mail clients such as OWA, Apple Mail and some devices such as iPhones and Android phones may cause this issue to occur. This is not anything we can control fully, as it is a mail client behaviour.
Exclaimer Cloud Solutions
Signatures for Office 365
Embedded images in Exclaimer Cloud Signatures for Office 365, can become attachments and or removed on a forward and reply email from some mail clients and devices, such as iOS and Apple Mail.
This is a mail client behaviour that we cannot control fully, the following article explains this issue further: Images in the signature are removed and/or display as attachments when replying or forwarding from iOS devices
Signatures for G Suite
Embedded images in Exclaimer Cloud Signatures for G Suite are automatically uploaded to your Google Drive, if the images do not show check that the Google Drive is active.
On Premise Products
If you find that the issue is occurring on a desktop mail client, such as Outlook from using Exchange Edition and or Outlook Edition template, then the Network Permissions or the Version Key have not been correctly set.
Ideally, images should be stored locally on the machine where the Exclaimer product is installed. For example:
If necessary, network drives can be used. In this case, you must specify the full UNC path to the image as Mapped network drives are not supported.
Web Hosted Images
There are many ways to host an image, so long as the Linked Image URL is public facing and accessible.
When building the templates and you find that the hosted images do not show, there are a few things that you can check here:
1. Check that the hosted link is public facing and accessible
2. Check that the hosting server is still active
3. if using Drop Box check that the end of the link is set to ?raw=1
4. If using Google drive and you are not using G Suite, check that open?id, is changed to UC?id
5. If you are using Share Point and or One Drive, ensure that you right click to open the image in a new tab, and use the url from the new tab to link the image into the signature template
To ensure the links can be read by the mail clients at all times, keep the hosted urls simple
Web Hosted Images in Mail Clients
Most mail clients such as OWA, Apple Mail and Gmail will automatically download web hosted images, into the email - unless specified otherwise on the mobile device, or machine used.
This is a security setting in the mail client itself, to prevent malicious malware and viruses, from entering into your environment.
If the images are not downloaded on a received email, on a reply mail they will display as a red X, on a forwarded mail, the images will be displayed as a white box, with a black border.
This can be seen in the source code as 'Image Removed by Sender' next to where the Images should be.
In Outlook the security settings for hosted images can be changed within the mail client's Trust Center: Outlook Options - Trust Center - Trust Center Settings