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Client was not authenticated

Hi, I have just transferred a clients domain and website to my hosting server, however have opted to keep the existing email settings on their exchange server.
After about a Week the domains have finally transferred and so I am testing the email to this client. However I am getting an error

site2.exch500.serverdata.net gave this error:
Client was not authenticated

Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept email from certain senders, or another restriction may be preventing delivery.

the DNS settings are now
Domain name :      breitensteins.com
IP Address (A-Record) :      212.227.55.224
Name server 1:      ns-uk.1and1-dns.co.uk
Name server 2:      ns-uk.1and1-dns.com
Name server 3:      ns-uk.1and1-dns.org
Name server 4:      ns-uk.1and1-dns.biz
Mail server 1:      site2.exch500.serverdata.net, 10

Any suggestions
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Simon Cripps
Asked:
Simon Cripps
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1 Solution
 
Simon Butler (Sembee)ConsultantCommented:
Most hosting platforms presume that they are responsible for everything - including email. Therefore if your server is setup in the same way then it may not be trying to connect to a remote server at all.

Have you used any external testing tools? Microsoft have one at http://exrca.com/, there is also mxtoolbox.

Simon.
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Simon CrippsOwnerAuthor Commented:
Thanks for that.
I thought that is where I set
Mail server 1:      site2.exch500.serverdata.net, 10
to let the hosting platform know it is not looking after the mail

Testing the external setting, I do not have the email login details to perform these test, so will look to get them.
Cheers
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Simon Butler (Sembee)ConsultantCommented:
You don't need any email login details to test from an external server.
Simply entering a known good address is fine, as the test sites go through everything up to the point of sending an email.

With the hosting platforms, setting the mail server (MX records) may not be enough. They don't always look at the DNS records, instead using internal references.

You need to check the email server platform to ensure the domain isn't listed.

Simon.
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Simon CrippsOwnerAuthor Commented:
Issue was typo with email server. apologies for wasting time
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Simon CrippsOwnerAuthor Commented:
just a typo
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