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improve PTR docs for email

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Girish Ramakrishnan
2016-09-29 12:52:00 -07:00
parent 02e15dc413
commit 79d2b0c11c
1 changed files with 14 additions and 6 deletions
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docs/references/selfhosting.md
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@@ -319,17 +319,25 @@ If you are unable to connect, verify the following:
## Mail
Spammers frequently abuse EC2 public IP addresses and as a result your Cloudron might possibly start out with a bad
reputation. The good news is that most IP based blacklisting services cool down over time. The Cloudron
sets up DNS entries for SPF, DKIM, DMARC automatically and reputation should be easy to get back.
Your server's IP plays a big role in how emails from our Cloudron get handled. Spammers frequently abuse public IP addresses
and as a result your Cloudron might possibly start out with a bad reputation. The good news is that most IP based
blacklisting services cool down over time. The Cloudron sets up DNS entries for SPF, DKIM, DMARC automatically and
reputation should be easy to get back.
### Checklist
* Once your Cloudron is ready, setup a Reverse DNS PTR record to be setup for the `my` subdomain.
* For AWS/EC2, you can find the request form [here](https://aws-portal.amazon.com/gp/aws/html-forms-controller/contactus/ec2-email-limit-rdns-request.
* For Digital Ocean this is automatic. Digital Ocean sets up a PTR record based on the droplet's name. For this reason, it is important that you do not rename your server and keep it at `my.<domain>`.
* Once your Cloudron is ready, apply for a Reverse DNS record to be setup for your domain. You can find the AWS request
form [here](https://aws-portal.amazon.com/gp/aws/html-forms-controller/contactus/ec2-email-limit-rdns-request).
* Check if your IP is listed in any DNSBL list [here](http://multirbl.valli.org/). In most cases, you can apply for removal
of your IP by filling out a form at the DNSBL manager site.
* Finally, check your spam score at [mail-tester.com](https://www.mail-tester.com/).
* Finally, check your spam score at [mail-tester.com](https://www.mail-tester.com/). The Cloudron should get 100%, if not please let
us know.
## Debugging