SMTP

Cellosign includes the ability to post emails to users and clients for purpose of invitations, reminders, alerts etc. On cloud installations we use 3rd party providers to post and manage email traffic.

Using our integrations you are able to integrate and deploy SMTP service of your organization.

Why do I need this?

There are number of reasons to integrate with your organization SMTP:

1. Emails from cellosign are posted with cellosign’s sender such as “invite@cellosign.com”. Using custom SMTP will control the sender and better service to your clients
2. Have tighter control on outbound email traffic and content

You can add as many SMTP as you need to serve as fallback. For example, assume there are SMTP1 and SMTP2 integrations. In case SMTP1 fail to respond, Cellosign will automatically try to send it with SMTP2 integration. Also see below fallback option to trigger Cellosign SMTP service in case of failure.

Setting up SMTP

Follow these steps to add SMTP integration:

1. At the dashboard click integrations
2. locate SMTP integration pane
3. click “Add”

Field	What it’s for?
Alias	Provide an alias for integration
Sender	Insert name that will appear as sender on Email. sender can be formatted for RFC 5322 specifics, for example: “Your company <email@company.com>”
System wide fallback	If fallback is turned then in case your SMTP fail to respond it will trigger Cellosign SMTP to make sure your emails to recipients will be posted.
Host	Insert host address (dns name). You may use IP but without TLS/SSL options as these options require certificate validation that cannot be authenticated
Port	Insert port. * Note that Port 25 is considered harmful and it is not supported on cloud installations.
SSL	Switch SSL on or off as required by your SMTP protocol. Use only if host is domain name and not IP
TLS	Switch TLS on or off as required by your SMTP protocol. Use only if host is domain name and not IP
Authentication	Select type of authentication: Simple, No Auth (See below)
User	Insert user name
Password	Insert password.

Save the integration and test it by entering email address under “Recipient” and click “Test”.

Authentication types

“Simple” use the standard SMTP protocol for Authentication and require user and pasword”Simple use the standard SMTP protocol for Authentication and require user and pasword

“No Auth” method does not require authentication at all. Be advised that this is not a recommended approach. In case your SMTP relay has no other way to connect with authentication please make sure to whiten relevant Cellosign IPs.