[xml/sgml-pkgs] Undelivered Mail Returned to Sender

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<debian-xml-sgml-pkgs at lists.alioth.debian.org>: host
    lists.alioth.debian.org[217.196.43.134] said: 550-policyd-weight said:
    temporarily blocked because of previous errors - 550 retrying too fast.
    penalty: 30 seconds x 0 retries. (in reply to RCPT TO command)
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