recently i found that some Emails with Big attachment more than 5MB delivered multiple times to recipients.
Below Sample
MAILCOW_WHITE (-999)
MAILCOW_AUTH (-20)
BAYES_HAM (-5.5) [100.00%]
NEURAL_HAM_LONG (-4) [-1.000]
NEURAL_HAM_SHORT (-2) [-1.000]
PDF_LONG_TRAILER (0.2) [ASSIH brand book copy22.pdf:147]
MIME_GOOD (-0.1) [multipart/mixed,multipart/related,multipart/alternative,text/plain]
RCVD_COUNT_ZERO (0) [0]
BCC (0)
DYN_RL_CHECK (0)
HAS_ATTACHMENT (0)
FROM_HAS_DN (0)
ARC_NA (0)
TO_DN_SOME (0)
MAILCOW_DOMAIN_HEADER_FROM (0) [assih.com]
ASN (0) [asn:8452, ipnet:41.33.128.0/18, country:EG]
TO_MATCH_ENVRCPT_ALL (0)
DYN_RL (0) [50 / 1s,assih.com]
RCPT_MAILCOW_DOMAIN (0) [assih.com]
FROM_EQ_ENVFROM (0)
DKIM_SIGNED (0) [assih.com:s=dkim]
RCPT_COUNT_TWO (0) [2]
MID_RHS_MATCH_FROM (0)
MIME_TRACE (0) [0:+,1:+,2:+,3:+,4:~,5:~,6:~,7:~,8:~,9:~,10:~,11:~,12:~,13:~,14:~,15:~,16:~,17:~,18:~]