sending email not working: PTR DNS record (PTR) did not match

[cylon]

Hello,

I keep having this error:

foo.com

PTR DNS record (PTR) did not match.
Hostname: 195.xxx.xxx.xx
Expected: my.foo.com
Actual: xxxx.l.time4vps.cloud
Relay error: Connect to port25check.cloudron.io timed out. Check if port 25 (outbound) is blocked
Email Status is checked every 30 minutes. See the troubleshooting docs for more information.

And I can't send email, for instance when inviting new users.

I'm using AWS route 53 and it works well to auto create subdomains when I install a new app

Any idea what I should do to get the email working ?

[cylon]

nevermind, port 25 is block on time4vps server

[girish]

@cylon usually, you can request your VPS provider to open that port and they might if they trust to now spam

Alternative is to setup a relay - https://docs.cloudron.io/email/#relay-outbound-mails