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Home » Kerio User Forums » Kerio Connect » SMTP AUthentication Issue (50 5.7.1 Relaying to <myname<_a.t_>> denied (authentication required)))

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I am trying to setup the kerio email license which we had earlier. I am running into issues when we try to send email from our domain to other domains(eg

Below are smtp options we selected

Configuration -> SMTP Server -> Relay Control.
We have selected the following checkbox

Users authenticated through SMTP for outgoing mail

Apart from this we also selected the option "Relay Control" smtp user and password required

The issue is

We can send and receive email in our own domain. We can also receive email from other domains.

But when we try to send mails to other domains we get the following error.

550 5.7.1 Relaying to <myname<_a.t_>> denied (authentication required))

Please help me to find a solution for this.

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