Hmm, not 100% sure but could it be "delivery success" confirmation requested from the sender that are returned by SmarterMail?

I never tested it but having a mail being deleted by the spam filter is maybe still considered has being delivered successfully to the mailbox from a SMTP point of view.

The receiving mailbox re-routing it to trash is probably out of SMTP scope.

Your log is an extract of the delivery log, can you check the SMTP log for the incoming mail, if there is any NOTIFY=success notion on the RCPT TO lines ?

Sébastien Riccio 

SMTP log do not indicate  NOTIFY=success notion on the RCPT To lines.  

In the spool dashboard never seen before build 7242 for any third party email outbound sender list. I think outbound means any email inside server to outside third party clients right ?  How come dashboard indicate outside domain outbound mail list

Delivery for service@paypal.com to service@paypal.com has completed (Delivered)

Any suggestion 

Thanks

Hello All

I have found the problem outbound mail by pass authentication via IP white list IP ,  latest build automatically fetch authentication by pass white list IP ,  its cause huge security vulnerability ,  Smatermail Support team should not  develop or open without customer knowledge by pass authentication.  

In my server huge list of IPs for white listed due to proper mail delivery.  The Ips accumulate over 14 years smartermail usage for mail service.

Any one using IPs white list then careful , should use only SMTP / IMAP purpose

FYI -  Spool Dashboard helped me outbound service

Thanks

Binesh

Hello Binesh,

The whitelisting functionality currently in SmarterMail is working as designed here. We strongly recommend that you do not whitelist any IPs that are not your own as whitelisting is meant to allow certain IPs to bypass certain security checks. If I am misunderstanding what is going on please let me know, and I'd be happy to try and see how I can help. Have a wonderful day.