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Coral RacingCoral Racing 

Salesforce Email Relay Help?

My email administrator currently has set up some forwarding rules on our Exchange to allow Salesforce emails to be sent and received however due to recent tigher security controls with external email we now need to be able to enable Salesforce to send all email through our Authenticated SMTP server. This will mean all emails will be authenticated and will pass all basic checks. It would also mean that we can remove all of the bypass rules that have been put in-place for incoming emails from Salesforce.
Recently we have had occurrences whereby all the forwarding rules we have set up is blocking mail through our mail gateway from Salesforce as we do not have send from source or not.
For the external rules sending all email through our Authenticated SMTP server might be a way we can bypass having to setup all this forwarding, either by Salesforce checking an internal account, or by allowing the forwarding via Mimecast.
Is Email Relay Activation the way forward?
Can anyone help?
Many thanks
NagaNaga (Salesforce Developers) 
Hi Coral Racing,

I think Email Relay should be the way forward here.
Route all email through their own email servers to avoid the appearance of email spoofing by Salesforce. Email spoofing is the forging of email headers to make messages appear as if they came from someone other than the original sender.

Store copies of all email as required by government regulations in various industries.
Apply existing content filters that scan messages for data and content that is not approved to be sent out through company email.
Run outbound email through antivirus software before sending it to customers.
Append data such as company-wide disclaimers at the bottom of email messages.You can set up email relaying for Salesforce-generated email by configuring Salesforce to automatically route email through your company's Simple Mail Transfer Protocol (SMTP) server. Contact Salesforce to enable email relaying for your organization.

Please follow the below link for more info

Best Regards
Naga Kiran
Joris VerschoorJoris Verschoor
Hey guys, check out to use your own authenticated mailserver in combination with salesforce.