SMTP Error (451): Failed to add recipient - Temporary lookup failure

Hi

im using CWP 7
i add MX record to the DNS ..
i created email account
when i try to send email from the web mail interface, im getting this error .. :

SMTP Error (451): Failed to add recipient "testemail@gmail.com" (4.3.0 <testemail@gmail.com>: Temporary lookup failure).


SMTP Error (451): Failed to add recipient "testemail@gmail.com" (4.3.0 <testemail@gmail.com>: Temporary lookup failure).

As of today, I also have this problem. When I open the mail from Roundcube and try to attach a file, I get this error.

Any solution?

Regards,

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2021/06/22 14:18:51 [crit] 30067#30067: *22191 open() "/var/lib/nginx/tmp/client_body/0000000135" failed (13: Permission denied), client: 212.5.XXX.XXX, server: mail.mydomain.com, request: "POST /?_task=mail&_remote=1&_from=compose&_id=97177805060d1c6ebb729c&_uploadid=upload1624360729218&_action=upload HTTP/1.1", host: "mail.mydomain.com", referrer: "https://mail.mydomain.com/?_task=mail&_action=compose&_id=97177805060d1c6ebb729c"

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try this:

Code: [Select]

chown -R nobody /var/lib/nginx/tmp/

try this:

Code: [Select]

chown -R nobody /var/lib/nginx/tmp/

No result

It worked out like this for me:

Code: [Select]

chmod +x /var/lib/nginx -R