I am suddenly unable to send emails from sandbox. This includes all emails from process flows (i.e. email alerts), email template previews, case emails, and even deliverability testing. I checked deliverability and it is correctly set to "All Emails": enter image description here

I've also verified that the emails are not going into the spam folder or being caught by my company's corporate spam blocker. After scouring the internet, all I can find is to set deliverability to "All Email" which I've done. Is there anything else that would prevent emails from going out?

  • did you look in the email log? errors can be found there – cropredy Jul 15 '19 at 14:44
  • I did. The results were "R" (received) and "D" (delivered), but I've not received any emails. – Paugh Jul 15 '19 at 17:08
  • And email addresses don't include 'invalid.com' ? – cropredy Jul 15 '19 at 17:37
  • That was it. The from address still had ".invalid". I removed that and it worked. – Paugh Jul 15 '19 at 18:47

(based on comment thread)

SFDC sandboxes will not send emails if the from or to recipient includes .invalid. By default, sandbox users will have the email appended by .invalid

see also related Sandbox Email ( Workflow, Process Builder, Apex ) no longer send email if user email ends in .invalid

| improve this answer | |
  • I had removed ".invalid" but refreshed the sandbox a couple months ago and forgot to reset the email. Working great now. Thanks. – Paugh Jul 15 '19 at 19:09

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