Outlook not sending mail generated from Dynamics GP

Midhin Gopan 1

Hi
Our Finance team is using GP 2018 ( version 18.3.1245 (2020)) and after the batch process in user 's machine it is supposed to send invoice as email attachment from outlook . As the process payment is done we can see an email is created initially outbox and then visible in sent items. But in few secs we will get a undeliverable mail from system administrator.

Before the mail generation we need to accept a dialog box which says --- A program is trying to access e-mail address information stored in Outlook. If this is unexpected, click Deny and verify your antivirus software is up-to-date. A program is trying to send an e-mail message on your behalf. If this is unexpected, click Deny and verify your antivirus software is up-to-date." it will proceed with email generation only if we accept

There are no application or system events.
Delivery fails for internal recipients also . My initial thoughts are it is related to some security issue where outlook client flags the mail as a spam and it does not even reach exchange.
OS of machine is win 10 20h2 . office version is Microsoft 365 MSO (16.0.14228.20216) 32-bit

any help will be appreciated.

Kael Yao-MSFT 37,496 Reputation points Microsoft Vendor

2021-08-24T02:01:50.84+00:00

Hi @Midhin Gopan

Sorry I am not very familiar with Dynamics GP.

According to the error message, it seems to be the Outlook security warning.
If not allowed, the emails will be blocked by Outlook and won't be sent.

On Outlook side, here is a Microsoft KB introducing how to resolve this issue:
A program is trying to send an e-mail message on your behalf warning in Outlook
You may need to keep your antivirus up to date or enable the "Never warn me about suspicious activity (not recommended)" setting to disable the warning.

On Dynamics GP side, I also found the following thread from the support forum, please also have a check to see if it works for you:
A program is trying to send an e-mail message on your behalf when trying to send a Template via E-mail

If the response is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
Kael Yao-MSFT 37,496 Reputation points Microsoft Vendor

2021-08-27T07:17:55.723+00:00

Hi @Midhin Gopan

Just checking in to see if above information was helpful. Please let us know if you would like further assistance.
Midhin Gopan 1 Reputation point

2021-09-01T01:20:25.34+00:00
HI @Kael Yao-MSFT
Thanks for looking into this.

AV status is showing as valid .

programmatic access is controlled by Policy but email is not generated when tried to run outlook with elevated privelege and changing the prog access to no prompt.

Another part is the mail delivery is happening when I add the entry MAPIX=1 in win.ini file. But then the name of file in attachment of mail and file name when using the option send to for file generated have changed to the full path of the file location including the server name. This is where I am stuck now .
Kael Yao-MSFT 37,496 Reputation points Microsoft Vendor

2021-09-01T06:31:16.007+00:00

Hi @Midhin Gopan

Thanks for your update.
While since your question is more related to Dynamics GP, I would suggest creating a new thread in the Dynamics GP support forum.
It will also help you get better answers.

Thanks for your understanding and hope you will get the answer soon.