Outlook 2007 "550 Administrative prohibition - relaying not allowed"

[SneakSMS]

I'm getting this error quite often when trying to send emails through outlook 2007, any ideas?

" 550 Administrative prohibition - relaying not allowed"

Can't seem to find any answers so far.

Thanks in advance!

[upnorthal]

The only time I have seen that with Exchange is where someone has tried to send an email from a differnt domain to the one Exchange is configured for

ie. Exchange Configured as mycompany.co.uk

and I try sending the email with a from address of yourcompany.co.uk

I wonder if the exchange server is not recognising the true identity of your Outlook client.

Its going to be something along those lines I am sure.

[BITS]

I'm getting this error quite often when trying to send emails through outlook 2007, any ideas?

" 550 Administrative prohibition - relaying not allowed"

Can't seem to find any answers so far.

Thanks in advance!


The message is basically saying that the server you have configured for outbound mail does not allow you to relay.

This could be a number of things.

You might have the wrong settings configured?
You might need to authenticate (login) in order to relay?

If you don't always get the message it could be a problem with the server the other end unless there is something different your end when you get the message? such as trying to send as a different email address from normal?

Lee

[SneakSMS]

Thanks Lee, realised the outgoing emails weren't set to use the right smtp credentials

[BITS]

Glad it's sorted, sounded like something like that.

Lee