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Added note for option to use either ssl or starttls (gsuite w/postfix) #2042

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Sep 27, 2018
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Added note for option to use either ssl or starttls (gsuite w/postfix) #2042

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1f34f41
Added note for using ssl or starttls
cwlinode Sep 27, 2018
32baef0
Copy edit fixes
leslitagordita Sep 27, 2018
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9 changes: 6 additions & 3 deletions ...e-postfix-to-send-mail-using-gmail-and-google-apps-on-debian-or-ubuntu/index.md
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Expand Up @@ -5,9 +5,9 @@ author:
description: 'Install and configure Postfix on Debian and Ubuntu to send email through Gmail and Google Apps.'
keywords: ["Postfix", " Ubuntu", " Debian", " SMTP", " Gmail"]
license: '[CC BY-ND 4.0](https://creativecommons.org/licenses/by-nd/4.0)'
modified: 2017-09-05
modified: 2018-09-27
modified_by:
name: Edward Angert
name: Linode
published: 2016-12-13
title: Configure Postfix to Send Mail Using Gmail and Google Apps on Debian or Ubuntu
---
Expand Down Expand Up @@ -84,6 +84,9 @@ Usernames and passwords are stored in `sasl_passwd` in the `/etc/postfix/sasl/`

{{< /file >}}

{{< note >}}
The SMTP server address configuration `smtp.gmail.com` supports message submission over port 587 ([StartTLS](https://en.wikipedia.org/wiki/Opportunistic_TLS)) and port 465 ([SSL](https://en.wikipedia.org/wiki/Transport_Layer_Security)). Whichever protocol you choose, be sure the port number is the same in `/etc/postfix/sasl/sasl\\_passwd` and `/etc/postfix/main.cf` files. See Google's [G Suite Administrator Help](https://support.google.com/a/answer/176600?hl=en) for more information.
{{< /note >}}

2. Create the hash db file for Postfix by running the `postmap` command:

Expand All @@ -104,7 +107,7 @@ To restrict access to these files, change their permissions so that only the **r

In this section, you will configure the `/etc/postfix/main.cf` file to use Gmail's SMTP server.

1. Find and modify `relayhost` in `/etc/postfix/main.cf` to match the following example:
1. Find and modify `relayhost` in `/etc/postfix/main.cf` to match the following example. Be sure the port number matches what you specified in `/etc/postfix/sasl/sasl\\_passwd` above.

{{< file "/etc/postfix/main.cf" >}}
relayhost = [smtp.gmail.com]:587
Expand Down