Emails from PostMania should include a hyperlink allowing the recipient to view the related diagram and comment. Ideally, the user would have a choice to open the diagram in either VP client or web browser.
Interesting. None of the emails I receive have the link you show. Mine simply says a user “has posted a reply in PostMania” and “You can view the reply in Visual Paradigm” or, in other cases a user “has created a post in PostMania” followed by “You can view and reply the post in Visual Paradigm.”
Are you showing the email as plain text?