Problem
When received by some web mail applications such as Gmail and Yahoo Mail, inline embedded images in signatures are displayed as attachments to the email, and are not part of a signature.
Reason
There are a number of known issues / reasons for embedded images to display as attachments in web-based email clients. If you encounter this issue, please check that the signature images display correctly whilst using the Outlook desktop client, OWA or the Outlook app on iOS / android devices.
Due to the various methods that mail clients use to display or attach images included in emails, we are unable to troubleshoot this problem when it occurs with an external webmail service.
Signature 365 is able to be configured to hotlink images in signatures, however this feature must be requested by the support team. The articles below detail the pros and cons of this method, and how to request this is enabled.
Configuring your Signature 365 Tenant to use hotlinked images : Signature 365 Help Center
Using hotlinked vs embedded images in Outlook : Signature 365 Help Center
If you experience an issue where this problem is also experienced in a desktop app or Outlook mobile client, please raise a ticket with the Support team by emailing support@symprex.com, or by using www.symprex.com/support/