Can you turn off Email-to-Case after enabling it?

No. Our org's settings page states that once Email-to-Case is enabled it can't be disabled, though you can still update its settings and routing addresses.

How many emails can On-Demand Email-to-Case process per day?

Your number of user licenses times 1,000, up to 1,000,000, shared with every Apex email service in the org. The figure is in the Apex Developer Guide email limits .

What is the attachment size limit for Email-to-Case?

On-Demand accepts messages up to 35 MB in total. Encoding can add up to 33%, so attachments of about 25 MB is the practical ceiling, per Salesforce Help article 000386265 .

Why is Case Origin blank on cases created from email?

Usually the routing address is not verified yet, and Salesforce skips its default priority, origin and record type until it is. Click the link in the verification email, or use Resend in Setup.

How do I send an email from a case in Salesforce Lightning?

Open the case and use the Email action in the case activity or feed. The sent email is saved on the case, and with threading on, the customer's reply comes back to the same case.

Email-to-Case in Salesforce: Setup, On-Demand vs Agent

Use On-Demand Email-to-Case for every new setup, and pick the old Email-to-Case agent only if a policy says customer mail must never leave your network and you already run the agent. On-Demand needs no software, runs on Salesforce email services, and handles up to 1,000 emails per user license a day.

Setting up Email-to-Case in Salesforce comes down to four moves: turn it on, switch on the on-demand service, add a routing address, and forward your support mailbox to the address Salesforce generates. I built it in a Developer Edition org and sent a test email that became case 00001062.

You will see the comparison, the full build, what the test case got wrong, and how to move off the agent.

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