Can't send e-mail's from a local domain

[Trovan]

Hello, i have a installed domain in cwp, i can receive e-mail's but i can't send.

The log says:

May  6 15:08:07 ecoar-contacto postfix/smtpd[24530]: 0D821280A8F: client=89-181-127-21.net.novis.pt[89.181.127.21], sasl_method=LOGIN, sasl_username=test@domain.com
May  6 15:08:07 servidor postfix/cleanup[13985]: 0D821280A8F: message-id=<>
May  6 15:08:07 servidor postfix/cleanup[13985]: 0D821280A8F: milter-reject: END-OF-MESSAGE from 89-181-127-21.net.novis.pt[89.181.127.21]: 4.7.1 Service unavailable - try again later; from=<test@domain.com> to=<test@domain.com> proto=ESMTP helo=<SRV1>

Anyone know this issue?

Regards,

[Sandeep]

temporary error ?

all your emails getting this error message ?

[Trovan]

No, i only have issues with this domain. all other domains work's.

This error appear in all mailbox associated a domain name.

[Sandeep]

ask the domain admin to white-list your IP

[Trovan]

I am domain admin, how i add this domain to white-list?

Thanks,

[Sandeep]

you can find tutorial on google how to white-list ip in postfix

[Jae]

if only happen in one domain, try to rebuild your postfix.
dont forget to backup main.cf and master.cf if you ever make any custom configuration..

[Jae]

Btw, what do you mean with "local domain", is that real public domain or ?

[Trovan]

I have rebuilded postfix, and the error's still.

It's a local domain, and a real domain.

I have added a white-list, and can't send the e-mails.

I can receive, from all domain, but i can't send. I think is problem in smtp.

I have checked mysql DB for check if host is inserted in table, it's all OK.

Thanks,

[Trovan]

I have found the problem.

If i comment this option in main.cf:
smtpd_milters = inet:127.0.0.1:8891

Now i can send e-mails, but i think is sended without dkim signature.

Anyone know how to fix that?

I have verified SPF and DKIM records, it's all ok.