451 4.4.0 detected undelivered mail to <email address>

[info.it]

WARNING: check: dns_block_rule RCVD_IN_VALIDITY_RPBL_BLOCKED hit, creating /root/.spamassassin/dnsblock_bl.score.senderscore.com (This means DNSBL blocked you due to too many queries. Set all affected rules score to 0, or use "dns_query_restriction deny bl.score.senderscore.com" to disable queries)
pmg-smtp-filter[1465843]: 80116A66CD8BB78E899: SA score=4/5 time=6.742 bayes=undefined autolearn=disabled hits=DMARC_MISSING(0.1),HTML_FONT_FACE_BAD(0.001),HTML_MESSAGE(0.001),HTML_TAG_BALANCE_BODY(0.1),KAM_DMARC_STATUS(0.01),RCVD_IN_VALIDITY_RPBL_BLOCKED(0.001),SCC_10_SHORT_WORD_LINES(1),SCC_20_SHORT_WORD_LINES(1),SCC_35_SHORT_WORD_LINES(1),SCC_5_SHORT_WORD_LINES(1),SPF_HELO_PASS(-0.001),SPF_PASS(-0.001),T_REMOTE_IMAGE(0.01),T_SCC_BODY_TEXT_LINE(-0.01)

pmg-smtp-filter[1465843]: Can't use an undefined value as an ARRAY reference at /usr/share/perl5/PMG/RuleDB/Remove.pm line 204.

relay=127.0.0.1[127.0.0.1]:10024, delay=373286, delays=373279/0/0.04/6.9, dsn=4.4.0, status=deferred (host 127.0.0.1[127.0.0.1] said: 451 4.4.0 detected undelivered mail to <email address> (in reply to end of DATA command))


I got the above warning and cannot relay the email out, can anyone help?

 

[Stoiko Ivanov]

a) please post `pmgversion -v`
b) on a hunch - did you try restarting the PMG?
c) do you have any modifications in place?