You use Exclaimer Cloud to apply signatures, but find that that a signature is inserted in the wrong (usually quite peculiar) place for a particular message. This looks odd, and gives the impression that the message has ended abruptly.
When you examine the message body, you find that it includes a series of underscores – perhaps denoting the start/end of a section, or a ‘form’ field that needs to be populated with relevant information.
Reply separators are used to determine where signatures should be placed in an email message. Wherever a reply separator is found, the signature is inserted just above it.
When replying to messages in Rich Text format, Microsoft Outlook (and other email clients/devices) identify a series of underscores (40 or more) as a reply separator. So, when the message reaches Exclaimer Cloud, the underscores inserted into the message body by the user are identified as a reply separator, and Exclaimer Cloud places the signature above it.
This is standard behavior within Microsoft Outlook (and other email clients/devices), therefore users should avoid using a long series of underscores in the content of messages.