[SPIKE] Investigate email outreach unsubscribe behavior

[DanielSass]

Description

A question has come up as to how the unsubscribe function works with SendGrid:
If a user receives marketing outreach and unsubscribes from that email, they should still receive emails that are associated with core application functionality (notifications from test results and/or account recovery & password reset functions).

Proposed solution

• Enable sendgrid on a lower env
• Send an email (similar to the way to send marketing for new STLTs on the UP) & unsubscribe
• Verify which unsubscribe list you end up on
• Attempt to trigger other email actions in the app

Additional context

If you don't have access to SendGrid reach out to TL

Definition of Done

Document any issues discovered in a ticket. If no issues found, confirm with Dan and Mindy if we have any other questions.

[mirrorstage]

@DanielSass Hopefully they stick to the industry standard which is basically "transactional emails are not the same as system notifications" but I do wonder if they might have left it to be config out of the box.

Anyway, will watch this one.

[bobbywells52]

Initial Spike Finding:

Unsubscribing from a PR/Marketing email DOES unsubscribe users from core functionally emails.

Workflow for discovery documented below:

1. Successfully completed a covid test in dev1 on test patient associated with [email protected]

2. Verified that test result was successfully sent

3. Successfully sent mock marketing email to [email protected].

4. Successfully unsubscribed by clicking the unsubscribe link at bottom of the email.

5. Verified that [email protected] was added to the global unsubscribe list in SendGrid.

6. Successfully ran second covid test on same test user in dev1.

7. Test Result email failed to send.

Additional note: I cannot find any option to not include the global unsubscribe list in our Simple Report Test Result dynamic email template.

cc: @mirrorstage @mindyatwork @DanielSass

[mindyatwork]

Could a potential solution be to create a different, marketing-specific unsubscribe group, and put that link on the marketing email instead? That way going forward people wouldn't be unsubscribing globally, just from marketing. @bobbywells52

[mindyatwork]

Created a new unsubscribe group New Features. Please use this instead as the unsubscribe group for future marketing emails. @jayna-SkylightDigital fyi

[mindyatwork]

The fix was manually tested by @bobbywells52 and confirmed to be working.