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Exim configuration SMTP error from remote mail server after pipelined

it flag

Cause change smtp server exim configured with smart host no longer sends mail with the following errors. The command used is this

# exim -v [email protected]
From: Webmaster <[email protected]>
Subject: Test Email
This is a test email.

the errors returned are as follows:

SMTP|> MAIL FROM:<> SIZE=2952
  SMTP|> RCPT TO:<[email protected]>
         will write message using CHUNKING
  SMTP+> BDAT 1929 LAST
  SMTP>> QUIT
  SMTP<< 451 4.0.0 Invalid from
  SMTP<< 502 5.5.1 Missing MAIL FROM command.
LOG: MAIN
  H=smtp-relay.brevo.com [1.179.115.1]: SMTP error from remote mail server after pipelined end of data: 451 4.0.0 Invalid from
  SMTP<< 502 5.5.1 Missing RCPT TO command.
  SMTP(close)>>
cmdlog: '220:EHLO:250-:STARTTLS:220:EHLO:250-:AUTH:334:********:235:MAIL|:RCPT|:BDAT:QUIT:451:502:502'
LOG: MAIN
  == [email protected] R=smarthost T=remote_smtp_smarthost defer (-45) H=smtp-relay.brevo.com [1.179.115.1]: SMTP error from remote mail server after pipelined end of data: 451 4.0.0 Invalid from

I haven't had the necessary support to solve the problem from the smtpserver vendor, so I'm asking you.

Thanks for the help

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