> postfix/smtpd[8385]: vstream_buf_get_ready: fd 10 got 1 You're looking at logging from SMTP SERVER to diagnose OUTBOUND email deliveries by the SMTP CLIENT??
Read my email again. Wietse After the Postfix SMTP client sees the "220 ***..." greeting it logs a warning (you DID look in the logs?) and will by default disable ESMTP and send HELO instead of EHLO. This default setting is: smtp_pix_workarounds = disable_esmtp,delay_dotcrlf You can configure that to not disable ESMTP, so that Postfix will send EHLO instead: smtp_pix_workarounds = delay_dotcrlf That might get you past the HELO problem. Wietse