If your organization uses Outlook and you're trying to set up an email delivery channel with Marketo Sales Engage, we recommend connecting to your Exchange server using our email connection feature.
SMTP Server: smtp.office365.com
Server Port: Port 587 - Secured
Authentication Method: Login (SSL/TLS)
Username or Login: your Office365 email address
Password: your Office365 email password
Your Domain: your company's domain
If you're still having issues setting up your SMTP server, partner with your Exchange Admin to ensure the right credentials are being used.
When sending through your Office365 SMTP, Microsoft imposes a limit of 30 messages sent per minute, and a limit of 10,000 recipients per day. Additionally, each member of your team who wishes to send emails through their Office365 SMTP server will need to set this up with their own email address and password in their Sales Engage settings. Checking the box for the setting "" will not work for this configuration, in accordance with Microsoft's Office365 account policies.