# Sending billing documents by e-mail

freispace can automatically send billing documents such as invoices by e-mail. This also works with both regular and recurring invoices.

## General setup[​](#general-setup "Direct link to General setup")

freispace will send the e-mails on your behalf with your company name clearly visible. By default, freispace sends these messages from the e-mail address `e-invoice [at] freispace.com` and signs them using S/MIME. The e-mails will typically include the document (e.g. invoice) as an attachment.

### Recipients / CC & BCC[​](#recipients--cc--bcc "Direct link to Recipients / CC & BCC")

Your e-mail will be delivered to the recipient e-mail addresses specified when creating the document.

You may add an unlimited number of CC and BCC recipients that should be included in every outgoing e-mail in the settings:

1. Go to the **Team settings**.

2. Click the **Invoicing** tab.

3. Scroll down to **E-mail delivery**, add your CC and BCC recipients, and click **Save**.

A great use case for this feature is to automatically BCC all outgoing invoices to your controlling department.

## Custom e-mail sender[​](#custom-e-mail-sender "Direct link to Custom e-mail sender")

You can set up a custom SMTP server to send e-mails from.

#### Benefits to setting up your own SMTP server for outgoing documents:[​](#benefits-to-setting-up-your-own-smtp-server-for-outgoing-documents "Direct link to Benefits to setting up your own SMTP server for outgoing documents:")

* It allows you to ensure all e-mails are only handled by your infrastructure.
* You can control the e-mail address of outgoing documents.
* Your customers may have whitelisted your domain or e-mail address, leading to safer deliverability.

#### Caveats to consider:[​](#caveats-to-consider "Direct link to Caveats to consider:")

* freispace can no longer sign/verify e-mails using S/MIME
* There may be potential delivery issues if your server is set up incorrectly.
* Your SMTP server needs to be accessible to our servers. In case of issues, delivery will be delayed.
* freispace can no longer assure correct delivery or warn you of failed deliveries.

Follow [this guide](https://docs.freispace.com/docs/billing/e-mails/custom-smtp.md) to set up sending via your own SMTP server.

## Failover strategy[​](#failover-strategy "Direct link to Failover strategy")

freispace will try three times to send an e-mail. If there are issues, we will notify the user of such issues.

If you are using a custom SMTP server, we will try reaching and sending the e-mail three times. If your server fails to be reachable or accept our send request, depending on your settings, we will use the freispace servers as a fallback.