SMTP.ehlo_or_helo_if_needed

smtplib

method of SMTP (source) not WASI

SMTP.ehlo_or_helo_if_needed()

Call self.ehlo() and/or self.helo() if needed.

If there has been no previous EHLO or HELO command this session, this
method tries ESMTP EHLO first.

This method may raise the following exceptions:

 SMTPHeloError            The server didn't reply properly to
                          the helo greeting.

© Python Software Foundation. PSF License Version 2 · Official docs ↗