Allow different authenticated address / from address ?
Question asked by Rafael Grecco - 4/29/2015 at 5:32 AM
I have a costumer which uses his ERP system to send e-mails through my Smartermail server.
He has configured a default account for his system, so all e-mails are sent from
But this system uses the user's address as the sending address, so the e-mail must be sent using one e-mail address ( but using the logged user's e-mail address as "from address"(
When this happens they get this error: "550 from address must match authenticated address" and the e-mail is not sent.
I have three questions:
1. I don't remember changing anything on my server configuration, but my costumer says that his ERP has always worked this way and he started getting this error recently. I have not upgraded Smartermail recently. What could have happened? (Maybe I changed some config but I don't remember...)
2. Is there a way to allow that behavior?
3. Is it dangerous to allow it? Is there any downside to it?
Thank you!!

2 Replies

Reply to Thread
Employee Replied
Employee Post Marked As Answer
Hi Rafael,
There is a setting in SmarterMail that requires the authenticated email address to be the same as the from address.  This setting is found as the system admin under Settings | Protocol Settings | SMTP in tab and change the "Require Auth Match" to None.  Then your customer should be able to send out from there ERP as before.
Rafael Grecco Replied
Hi Brian,

Thank you very much for your help. It is working now.

Reply to Thread