SMTP Forward with MailMessage fails

When using SMTP for Forwarding MailMessage (retrieved using IMAP get message ) we get below error:
Send SMTP Mail Message : 5.7.1 Client does not have permissions to send as this sender

But same configuration works without MailMessage in forward field.


hey @sudharshan

please let me know if you found solution for this problem…

@sudharshan, @rahatadi Did you get a solution for this problem ?

@ovi, @badita I am getting similar problem while using SMTP Forward - When i try to Forward a Mail using SMTP , the mail is not getting send ( i am not getting any error but mail is not getting send) , when i try the same without “MailMessage” in forward field then mail is getting send.

Also i am able to forward the same “MailMessage” object when i use “Send Outlook Mail” activity. So why does the SMTP Forward don’t work ?

Any help would be appreciated.

Are you using the same email account when sending with outlook?

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No, I am not. I don’t have the email account i want to use in SMTP setup in Outlook.
I just tried Outlook to check if the issue is with MailMessage object. The email account used in Outlook is my company mail and the email account used in SMTP activity is a Gmail account.

There is a chance that your email server rejects the forwarded mail? You should see an error in the activity though…

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