sleep a bit more after a mail, to avoid smtplib.SMTPConnectError: (421,...
sleep a bit more after a mail, to avoid smtplib.SMTPConnectError: (421, b'4.3.2 Connection rate limit exceeded.')
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sleep a bit more after a mail, to avoid smtplib.SMTPConnectError: (421, b'4.3.2 Connection rate limit exceeded.')