Of course, but whenever I force the message using postqueue -i the message was delivered nicely. Is there a way to see in the log when postfix tries to send to sendgird, which user and pass are called? I think maybe the user are wrong when they try to send in the queue, but when the message is forced it's delivered.
Thanks for all ! ________________________________ De: owner-postfix-us...@postfix.org <owner-postfix-us...@postfix.org> em nome de Wietse Venema <wie...@porcupine.org> Enviado: quarta-feira, 19 de dezembro de 2018 15:40 Para: Postfix users Assunto: Re: Sender-Dependent SASL Luis Miguel Flores dos Santos: [ Charset ISO-8859-1 converted... ] > Hi I'm using Sender-Dependent SASL authentication and sending to sendgrid but > afters a few days we have this errors for all clients: > > Dec 19 14:35:44 UBMSASENDWEB01 postfix/error[16038]: 4631114A2E3: > to=<daryoorl...@hotmail.com>, relay=none, delay=579, delays=569/9.3/0/0.06, > dsn=4.0.0, status=deferred (delivery temporarily suspended: SASL > authentication failed; server smtp.sendgrid.net[167.89.123.53] said: 451 > Authentication failed: Maximum credits exceeded) The *sendgrid server* says: 451 Authentication failed: Maximum credits exceeded For more info, I suggest the sendgrid website. Wietse