Thanks, here is one instance from the current log. Which other logs should I log at to help with this? I have changed the spam tagging level to 6.0 to let this one go through as ham. It still repeats.
@400000004b4abb32131110bc 21478 Accepted connection 0/40 from 127.0.0.200 / Unknown
@400000004b4abb32131ca1ac 21478 Connection from Unknown [127.0.0.200]
@400000004b4abb3315913f74 21478 check_earlytalker plugin: remote host said nothing spontaneous, proceeding
@400000004b4abb3315e41a64 21478 220 mail.mydomain.com ESMTP
@400000004b4abb3315ef1eb4 21478 dispatching EHLO localhost
@400000004b4abb33163db7cc 21478 250-mydomain.com Hi Unknown [127.0.0.200]
@400000004b4abb331644d034 21478 250-PIPELINING
@400000004b4abb33164bc574 21478 250-8BITMIME
@400000004b4abb33165293a4 21478 250 SIZE 15000000
@400000004b4abb33165f8424 21478 dispatching MAIL FROM:<xxxx@xxxx.xxx> SIZE=470100
@400000004b4abb33166d246c 21478 full from_parameter: FROM:<xxxx@xxxx.xxx> SIZE=470100
@400000004b4abb33167aefac 21478 from email address : [<xxxx@xxxx.xxx>]
@400000004b4abb3319e1e484 21478 getting mail from <xxxx@xxxx.xxx>
@400000004b4abb3319ea02a4 21478 250 <xxxx@xxxx.xxx>, sender OK - how exciting to get mail from you!
@400000004b4abb3319f758b4 21478 dispatching RCPT TO:<recipient@mydomain.com>
@400000004b4abb331a0579e4 21478 to email address : [<recipient@mydomain.com>]
@400000004b4abb331a63e5c4 21478 check_goodrcptto plugin: stripping '-' extensions
@400000004b4abb331ae9c734 21478 250 <recipient@mydomain.com>, recipient ok
@400000004b4abb331af6948c 21478 dispatching DATA
@400000004b4abb331b03a834 21478 354 go ahead
@400000004b4abb331c19a444 21478 spooling message to disk
@400000004b4abb7c25f093ec 21478 spamassassin plugin: check_spam: Yes, hits=5.3, required=5.0, tests=EXTRA_MPART_TYPE,HTML_IMAGE_RATIO_02,HTML_MESSAGE,MY_CID_AND_STYLE,RCVD_IN_PBL,RCVD_IN_SORBS_DUL,RDNS_NONE
@400000004b4abb7c2679ccd4 21478 virus::clamav plugin: Changing permissions on file to permit scanner access
@400000004b4abb7d0ba59334 21478 virus::clamav plugin: clamscan results: /var/spool/qpsmtpd/1263188777:21478:0: OK
@400000004b4abb7d0c3f8d2c 21478 logging::logterse plugin: ` 127.0.0.200 Unknown localhost <xxxx@xxxx.xxx> <recipient@mydomain.com> queued <4D9A7A8F0F0E454DA6A5F55E4773BCCF@MarlsLaptop> Yes, hits=5.3 required=5.0_
@400000004b4abb7d0c3fb054 21688 queue::qmail_2dqueue plugin: (for 21478 ) Queuing qp 21688 to /var/qmail/bin/qmail-queue
@400000004b4abb7d21475efc 21478 250 Queued! 1263188851 qp 21688 <4D9A7A8F0F0E454DA6A5F55E4773BCCF@MarlsLaptop>
@400000004b4abb7e1462f0d4 4544 cleaning up after 21478