This patch series improves SMTP authentication error handling.
Auth relied solely on return values without capturing exceptions,
misjudging non-credential errors as authentication failures.
Patch v7 1/2 wraps the auth process in an eval {} block to catch all
exceptions, adds var error for future handling, and var result to return
auth state.
Patch v7 2/2 introduces finer-grained SMTP error handling, extracting
status codes per RFC 5321 to differentiate between temporary (4yz) and
permanent (5yz) errors. For 4yz (transient errors), return 1 and allow
retries. For 5yz (permanent errors), return 0 as failure. Unrecognized
codes are treated as transient errors by returning 1. If the status code
is not caught or no error occurs but no result is defined, return 1 as a
transient error. Otherwise, return the authentication result.
Zheng Yuting (2):
send-email: capture errors in an eval {} block
send-email: finer-grained SMTP error handling
git-send-email.perl | 68 +++++++++++++++++++++++++++++++++++----------
1 file changed, 54 insertions(+), 14 deletions(-)
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2.49.0
