Hello,
We are having customers report that invoices that are emailed out of Acumatica are being received more than once. We click the email button only once, the activity shows one email sent on the invoice page, the All Emails page shows the invoice only sent once, but then our Postmark Server Log shows it processed one second apart.
What could be causing this? We restarted our server last week hoping the reset would alleviate the issue, but it did not.