When sending an email appeal mailing, the email does not send. If I go to Administration > Email Services, and select the Email Jobs tab, the status of the job says "Exception occurred".
Additionally, Altru lets me rerun the mailing and click the Send Email button. You shouldn't be able to rerun the appeal mailing if the original email sent successfully. Sometimes, even if I resend the email the new email job will still show the same error.
Please Chat with Support and reference this article so support can get the full error from email services.