natan <na...@epf.pl> writes:

> Feb 13 11:48:14 amavis5 amavis[934307]: (934307-01) SA info: async:
> aborting after 4.815 s, deadline shrunk: URIBL,
> A/kra20at.cc.multi.surbl.org, rules: URIBL_ABUSE_SURBL,
> URIBL_CR_SURBL, URIBL_MW_SURBL, URIBL_DM_SURBL, URIBL_PH_SURBL,
> SURBL_BLOCKED, URIBL_CT_SURBL

This can sometimes happen from short circuiting.

> or:
> Feb 13 11:50:40 amavis5 amavis[939452]: (939452-01) _WARN: check:
> dns_block_rule RCVD_IN_VALIDITY_CERTIFIED_BLOCKED hit, creating
> /var/amavis/var/.spamassassin/dnsblock_sa-trusted.bondedsender.org
> (This means DNSBL blocked you due to too many queries. Set all
> affected rules score to 0, or use "dns_query_restriction deny
> sa-trusted.bondedsender.org" to disable queries)

It seems you are seeing this on multiple RBLs.  It is highly likely you
are using a shared resolver.

https://cwiki.apache.org/confluence/display/SPAMASSASSIN/CachingNameserver

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