[issue32803] smtplib: LMTP broken in the case of multiple RCPT

[Jacob Middag]

Jacob Middag  added the comment:

It would be nice if someone could take a look.

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versions: +Python 3.10, Python 3.9

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[issue32803] smtplib: LMTP broken in the case of multiple RCPT

[Jacob Middag]

Jacob Middag  added the comment:

Could anyone take a look to the PR?

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[issue32803] smtplib: LMTP broken in the case of multiple RCPT

[Jacob Middag]

Change by Jacob Middag :


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keywords: +patch
nosy: +middag
nosy_count: 2.0 -> 3.0
pull_requests: +18253
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/18896

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[issue32803] smtplib: LMTP broken in the case of multiple RCPT

[Barry A. Warsaw]

Barry A. Warsaw  added the comment:

3.5 and 3.4 are in security fix only mode, so narrowing the relevant versions.

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nosy: +barry
versions:  -Python 3.4, Python 3.5

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[issue32803] smtplib: LMTP broken in the case of multiple RCPT

[jasen betts]

New submission from jasen betts :

smtplib's LMTP support is broken, 

 LMTP returns multiple responses at and of data if there have been multiple 
successful RCPT TO  commands, but smtplib::data() only looks for a single 
response.

see the example conversation on page 3 of RFC2033

This makes LMTP unusable if there is more than one RCPT

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components: Library (Lib)
messages: 311854
nosy: jasen betts
priority: normal
severity: normal
status: open
title: smtplib: LMTP broken in the case of multiple RCPT
type: behavior
versions: Python 2.7, Python 3.4, Python 3.5, Python 3.6, Python 3.7, Python 3.8

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