SMTP Relay Getting Started Guide
SendGrid Integration with Salesforce
Connect Salesforce to SendGrid for improved deliverability.
Mailgun Integration with Salesforce
Route Salesforce emails through Mailgun.
Office365 Integration with Salesforce
Send Salesforce emails through Office365.
SMTP Integration with Salesforce
Use any SMTP server with Salesforce.
Background reading
Not sure yet which setup you need? These guides explain the problems SMTP Relay solves:
Frequently Asked Questions
Technical Details
SMTP Relay acts as a relay between your Salesforce org and a third party mail server. Salesforce allows you to set a mail server as the relaying mail server, but this method does not support authentication. SMTP Relay trusts the IP range of Salesforce only. When it receives an email message from Salesforce it checks to see with which mail server it should be sent. The server then uses that mail server with credentials and SSL/TLS to relay the message.
What does SMTP Relay do?
SMTP Relay allows you to use any SMTP server from your Salesforce org. Salesforce does not support authenticated SMTP relay servers. To make this work, you would have to have an open relay for the IP-ranges of Salesforce. This is not always a possibility.
Why would I want to use my own mail server?
The most common reasons are to improve email deliverability and control. Sometimes emails sent by Salesforce end up in the junk mail folder, and there's nothing you can do about it. You might want all email to go through a third party email server, which can add open-tracking.
How does it work?
SMTP Relay trusts the Salesforce mail servers, and sends the emails using the email server you provide. This can be anything, e.g. your own SMTP server, SendGrid, Mailgun, AuthSMTP or Amazon SES. These email services have excellent deliverability and a great support team.
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