can receive email but cannot send

[buno047]

Hi guys,

I added my domain.com in sentora. I can receive emails from other (Ex. gmail) but I cannot send emails. Actually thunderbird shows that email was sent but in reality i did not receive it into gmail. I didn't change anything in sentora config/DNS. What might be the cause? Thank you in advance.
I added some screenshot so that you can have a look.
My domain registrar and dns server is namecheap. The domain is hosted in VPSie.

[Diablo925]

hi

try to use http://mxtoolbox.com/blacklists.aspx to see if you ip or domain name is block if you need to get is unblock

are you using port 25 as SMTP if it can be block

if change the port use on of the guide on the forum to change

hint look after postfix/master.cnf

and submission  inet  n       -       n       -       -       smtpd

it is port 587

[Me.B]

http://www.intodns.com/mottonix.com

DNS servers are from your registrar, so all MX and changes must be there! And there is no MX setup there.

M B

[th3infekt3d]

http://www.intodns.com/mottonix.com

DNS servers are from your registrar, so all MX and changes must be there! And there is no MX setup there.

M B

I have exactly the same issue, I can receive fine but sending does not work, it looks like it is sent but nothing shows up in the other side.after 4 hours it says mail was unable to be sent that it will retry in 4 hours for 7 days. I tried to install zpanel and I still have the same outcome. I have done every fix that I find in google and still not result. hope we find the solution to this because its driving me crazy, when we find it we should make step by step to help everyone

[Me.B]

Check DNS setup and port
25 open.

[th3infekt3d]

Check DNS setup and port
25 open.

the port 25 is open and could you tell me a good DNS set up to confirm that the one I have is correct

[th3infekt3d]

my dns look fine but when I test the email I receive this



Resolving hostname...
Connecting...
SMTP -> FROM SERVER:
220 mail.mydomain.com ESMTP
SMTP -> FROM SERVER:
250-mail.mydomain.com
250-PIPELINING
250-SIZE 20480000
250-ETRN
250-AUTH PLAIN LOGIN
250-AUTH=PLAIN LOGIN
250-ENHANCEDSTATUSCODES
250-8BITMIME
250 DSN
MAIL FROM: user@mydomain.com
SMTP -> FROM SERVER:
250 2.1.0 Ok
RCPT TO: externalemail@outdomain.com
SMTP -> FROM SERVER:
454 4.7.1 : Relay access denied
SMTP -> ERROR: RCPT not accepted from server: 454 4.7.1 : Relay access denied

Message sending failed.

[th3infekt3d]

I have the DNS with godaddy and it looks fine, I reinstalled Sentora and the subdomain and external IP didnt give me warnings or errors

[th3infekt3d]

this is the settings when I installed it


=== Informations required to build your server ===
The installer requires 2 pieces of information:
1) the sub-domain that you want to use to access Sentora panel,
- do not use your main domain (like domain.com)
- use a sub-domain, e.g panel.domain.com
- or use the server hostname, e.g server1.domain.com
- DNS must already be configured and pointing to the server IP
for this sub-domain
2) The public IP of the server.


Enter the sub-domain you want to access Sentora panel: mail.mydomain.com

The public IP of the server is XX.XXX.XX.XXX. Its local IP is XXX.XXX.X.XXX
For a production server, the PUBLIC IP must be used.
Enter (or confirm) the public IP for this server: XX.XXX.XX.XXX

OK: DNS successfully resolves mail.mydomain.com to XX.XXX.XX.XXX

All is ok. Do you want to install Sentora now (y/n)?