If you have users added to your 17hats account, and those Users have a different Email Sent As address from your Microsoft Office365 email account, you will receive an error when you attempt to connect Office365 as your Outgoing Email Server. Office365 requires the account email to match the Email Sent As address for all 17hats Users. You can set each User's Email Sent As on their Account Info page in 17hats. If you still wish to use your Office365 account to send emails from 17hats, all emails will come from the same email address regardless of which User sends the email. Each User can still use their own Email Signatures, though!
When using your own server, the address showing the message as sent will always be the Outgoing Email Server email address. If you wish each User to be able to use their own email address for sending emails from 17hats, you will need to use the 17hats Mail Server instead.
When you send a message with the 17hats server, it will show as being sent from the address listed in the "Email Sent As" Address section. This is shown in your Outgoing email settings and is set by the address listed in your Account Setting.
When the message is sent, it will show the senders name, their email address that is listed in account settings, and the server that sent the message.
If the customer opens the details of the sender, they'll see the "Email Sent As" email address in the From field and the Sendgrid server in the Mailed By field.
When your customer replies to that message, it will go back to the inbox of the person who sent it. They will see that message on their dashboard and in the contacts project.
For more information on using the 17hats mail server as your Outgoing Server, please click the button below.