Any mail I send from my local PC with Zimbra Desktop to any account on my internet hosted ZSC 7.2.6 will be marked as spam with following mail header entry:
That's really kinda annoying, espacially because I need to believe that other mail servers will mark me as spammer, too.
X-Spam-Status: Yes, score=8.458 tagged_above=-10 required=6.6
tests=[BAYES_50=0.8, HELO_NO_DOMAIN=0.001, RCVD_IN_BRBL_LASTEXT=1.449,
RCVD_IN_PBL=3.335, RCVD_IN_RP_RNBL=1.31, RCVD_IN_SORBS_WEB=0.77,
The reason is: My local Zimbra Desktop sits behind a dynamic IP which is blacklisted and obviously this IP will be the sender of the mail.
Is there any option for me to prevent this happen? Like setting my ZCS as smarthost for the ZD?