PTR record on AWS EC2

[gabrielle]

Hi everyone,

I've recently deployed Baserow on an AWS EC2 instance. Cloudron is telling me the PTR record needs to be adjusted. To do so, I've looked at the Cloudron documentation and the AWS documentation for Use reverse DNS for email applications.

I then did the following steps:

1. Created an elastic IP address for my instance
2. Made an A record in my Godaddy DNS for pointing "my" to the newly created elastic IP address
3. Made a reverse DNS record in the EC2 console for the elastic IP address

But I am still getting the PTR error on the Cloudron side.

Any clue what I might be missing?

Thank you for your help

[girish]

@gabrielle you can try host -t PTR <your-ip-address> . Does the above command produce your my.domain.com ? You can use dig -x <ip-address>.

[girish]

Oh, I just noticed that you are on EC2.

The reverse DNS is needed so that the VPS can directly send emails. On EC2, directly sending emails is blocked and won't work even if you setup the reverse DNS properly. You have to setup a relay, for example SES - https://docs.cloudron.io/email/#amazon-ses

[gabrielle]

@girish Ha ok, makes sense, will try setting up the relay and update the thread. Thx!