Hello, 

Thank you for reaching out to the community. 

How does your script work exactly? Does it just write to it when it pops into the proc folder? Does it only change incoming external messages or does it do outbound sending messages as well? Something that might work is after making the change you move the .eml to the drop folder then it would be resent. I tested putting a draft into the drop folder and it was delivered externally and passed DKIM. 

Please let me know if this helps. 

Kind Regards, 

Hi Zach,

Thank you very much for your reply.

For outbound deliveries with modified body, yes, they were delivered successfully and passed DKIM checks at the recipient end. My problem is with the inbound mails.

My script reads the hdr file to determine if the mail is inbound or outbound; if the mail is inbound (containsLocalDeliveries=true), the script adds additional content to the html part / text part.

I note that at this stage, the eml file has not gone through spool filtering spam checks, as the

X-SmarterMail-Spam and X-SmarterMail-TotalSpamWeight headers are not yet available.

The spool filtering spam checks are only carried out after I placed the eml and hdr back to the drop folder / subspool folder, which is confirmed by the entries in delivery log and spamchecks log. Sample spamchecks log looks like the following:

07:49:55.558 [20374028] Running SPF check

07:49:55.558 [20374028] Finished SPF check; result = Pass

07:49:55.558 [20374028] [DKIM] Performing DKIM check...

07:50:04.074 [20374028] Spam Checks completed.

07:50:04.074 [20374028] SpamCheck Processing Thread Completed

Thank you!

Hi,

For the case of Command Line File under General > Spool, the exe is invoked before spam checks.

It would be ideal if there is another option to have command line invoked after "Removed from SpamCheckQueue" and before "Added to LocalDeliveryQueue"

01:20:01.962 [20373318] Delivery started for sender@external.com at 1:20:01 AM

01:20:07.978 [20373318] Added to SpamCheckQueue (0 queued; 1/30 processing)

01:20:07.978 [20373318] [SpamCheckQueue] Begin Processing.

01:20:07.978 [20373318] Blocked Sender Checks started.

01:20:07.978 [20373318] Blocked Sender Checks completed.

01:20:08.431 [20373318] Spam Checks started.

01:20:12.899 [20373318] Spam Check results: [REVERSE DNS LOOKUP: 0,Passed], ...

01:20:12.899 [20373318] Spam Checks completed.

01:20:12.899 [20373318] Removed from SpamCheckQueue (0 queued or processing)

01:20:13.978 [20373318] Added to LocalDeliveryQueue (0 queued; 1/50 processing)

01:20:13.978 [20373318] [LocalDeliveryQueue] Begin Processing.

01:20:13.978 [20373318] Starting local delivery to recipient@local.com

Hi Zach,

Thanks for your reply. Looks like for the time being that's the only solution for those installations that have an inbound gateway.

Thank you.

Hello, 

As you said you would need an inbound gateway. You can take a look at this guide and set it up without having to purchase a new key. https://portal.smartertools.com/kb/a2669/configure-smartermail-as-a-free-gateway-server.aspx

Kind Regards,