[issue5713] smtplib gets out of sync if server returns a 421 status

[Terry J. Reedy]

Terry J. Reedy <tjreedy at udel.edu> added the comment:

Smptlib is documented as RFC821/1869 based. So this is a request for a new feature. I presume more would be required to bring it up to 2821/5321. Assuming so, what is the rationale for adding just one new feature. This would mean tacking something like "and RFC 2821 for 421 status" on the end of "For details of SMTP and ESMTP operation, consult RFC 821 (Simple Mail Transfer Protocol) and RFC 1869 (SMTP Service Extensions)."

Can a test be written for this? There seem to be some coded status tests already.

I

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nosy: +tjreedy
stage:  -> unit test needed
type: behavior -> feature request
versions: +Python 3.2 -Python 2.4, Python 2.5, Python 2.6

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