forwarded emails show wrong content

Hi,

I have hundreds of emails that are very similar, all addressed to different customers -- it's what they receive when they purchase a product. For several years, the content (other than the individual customized fields that are generated by an API elsewhere) was identical. Several weeks ago, the content of those generated emails changed. Curiously, if I try to forward any recent email, while the customized/individualized content of the email remains intact, the boilerplate content in the forwarded email is that of the old version (the original email on which I'm clicking Forward looks good -- it's only the forwarded content that looks like the old stuff).

I'm sure that this is a MailMate issue (nothing in the emails themselves) because if I use a different email client to do the forward, the content in the forward remains as it is in the original email.

I have to do this dozens of times everyday, so need the issue corrected. I don't know if there is some library file I could delete in this regard.

Since the Subject and TO contents of these emails differ, it is perplexing as to how this happens.

Thank you,

Heidi