Unable to send emails from sandbox

Hi there ! Weird issue : I’m using the email module, as I need to send emails to customers. I’m using Zoho SMTP with a pro account (smtppro.zoho.eu) Works perfectly fine when running on my local server Test email works fine when running the sandbox (so the SMTP config is good) An error occur when I try to send normal emails : “Sending the email to the following server failed : smtppro.zoho.eu:465”, caused by “javax.mail.MessagingException: Can't send command to SMTP host”.  Huge stack down there, but nothing else in the logs … Any ideas ?
1 answers

According to stack overflow: https://stackoverflow.com/questions/6740838/javamail-issue-cant-send-command-to-smtp-host you should look into the startTLS option. You might want to contact Zoho support about this error.