Set up server-side email signature deployment for Microsoft 365. Emails route through Scribe’s secure servers to add signatures from any device or client.
Server-side installation automatically adds signatures to emails from any device or client.
Centralized one-click installation. No teammate action needed. Users don’t see signatures when composing emails. Your emails are processed through Scribe’s secure servers for signature injection.
Supported platforms: Web, Desktop, Apple Mail, iOS, Android
This is an advanced user feature. IT support is required to set up this integration.
Users don’t see signatures when composing an email.
Your emails are processed through Scribe’s secure servers to install signatures. Scribe cannot read or edit your emails.
You can combine cloud-based integration with server-side integration. If both are connected, Scribe defaults to cloud-based integration so users can see their signatures when composing emails.
Microsoft 365 admin access (Exchange admin center)
At least one signature created in Scribe
The setup involves four parts: creating an outbound connector, creating an inbound connector, creating a mail flow rule, and configuring DKIM.
1
Create an outbound connector
To route emails through Scribe’s secure servers, create an outbound connector in your Exchange admin. In the Exchange admin interface, go to Mail flow → Connectors and click “Add a connector.”
Exchange admin: Connectors page
2
Select connection type
Select “Office 365” for connection from and “Partner organization” for connection to.
New connector: Connection type selection
3
Configure connector details
Enter a connector name and description. Optionally, check “Turn it on” to enable immediately.
Name:Scribe signature outbound
Description:Scribe signature outbound
Connector name and description
4
Select use of connector
Select “Only when I have a transport rule set up that redirects messages to this connector.”
Use of connector selection
5
Configure routing
Select “Route email through these smart hosts” and add the following host to the list:
smtp.server.scribe-mail.com
Routing configuration with Scribe smart host
6
Configure security restrictions
Select “Always use Transport Layer Security (TLS) to secure the connection (recommended)”, then:a. Select: “Issued by a trusted certificate authority (CA).”b. Check: “Add the subject name or subject alternative name (SAN) matches this domain name.”c. Enter the following in the field:
smtp.server.scribe-mail.com
Security restrictions: TLS configuration
7
Validate the connector
Enter the following as the test email and start the validation:
scribe-o365-test@scribe-mail.com
Sometimes the validation fails, but you can safely continue without validating.
Validation email configuration
8
Create an inbound connector
In your Exchange admin interface, go to Mail flow → Connectors and click “Add connector.” Select connection from “Your organization’s email server” (connection to will be set to Office 365 automatically).
New inbound connector: Connection type selection
9
Configure inbound connector details
Enter a name and description. You can also check “Turn it on” to enable the connector immediately.
Name:Scribe signature inbound
Description:Scribe signature inbound
Inbound connector name and description
10
Authenticate sent email
Select “By verifying that the IP address of the sending server matches one of the following IP addresses, which belong exclusively to your organization.”Add the two following IPs to the list:
15.236.243.144
51.44.50.107
Authenticating sent email: IP verification
11
Create a mail flow rule
In your Exchange admin interface, go to Mail flow → Rules.a. Click “Add a rule”b. Click “Create a new rule”
Rules page: Create a new rule
12
Set rule conditions
Fill in the rule form as follows:
Name:Route outbound mail via Scribe Signature
Apply this rule if: The sender → is external/internal → The sender is located “InOrganization”
Do the following: Redirect the message to → the following connector → select “Scribe signature outbound”
Except if: The message headers → match these text patterns → X-Scribe-Processed message header matches true
The exception prevents Scribe from processing your emails multiple times.
Set rule conditions form
13
Enable the rule
On the next step, you can leave the rule settings as is. Review your rule and save it. From the rules list, select your rule and enable it.
Enable the mail flow rule
14
Configure DKIM
Configure DKIM for your sending domains to keep emails out of spam folders and avoid missing assets such as images and links.Click Configure DKIM in Scribe to start the configuration.
