ValidSentAddresses not removed from recipients list on SendFailedException
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Key: JAMES-881
URL: https://issues.apache.org/jira/browse/JAMES-881
Project: JAMES Server
Issue Type: Bug
Components: Remote Delivery
Affects Versions: 2.3.1, 2.3.0
Reporter: Jean Marc
In the deliver() loop of RemoteDelivery, when a SendFailedException is received
as a "452 Too Many Recipients" from a remote server, the processing continues
to the next available server regardless of the ValidSentAddresses, and the
whole list of original recipients is sent again to the next server of the
domain, creating multiple duplicate emails in the recipients accounts.
The typical example is Yahoo, which accepts a variable number of recipients per
email from a specific server according to their internal business rules (bulk
settings, SPF, reverse DNS, etc). For example, Yahoo servers receive a mail for
69 addresses, accepts the email for the first 30, then stops processing the
mail and returns code=452 and the list of valid sent/unsent addresses. James
logs the list of valid sent, and continues to the next mx record, sending the
email to the 69 recipients again.
Should the code 452 be treated as an error code, or RemoteDelivery remove the
validSent from the list before 'continu'ing to the next server ?
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