Emailing outside organisation

[BensTooCool]

Hi,

I've developed a bit of VBA that will send an email from a shared mailbox to a mailing list that is stored within an array. This process works fine except for any addresses outside my organisation. I will get this error:

If I send the email manually myself from the mailbox then it's fine, it is just whenever I try through VBA. Any ideas?

VBA CODE

Set cdoConfig = New CDO.Configuration
fileIterator = 0

With cdoConfig
.Fields(cdoSMTPServer) = "<SMTP SERVER>"
.Fields(cdoSMTPServerPort) = 25
.Fields(cdoSendUsingMethod) = cdoSendUsingPort
.Fields(cdoSMTPConnectionTimeout) = 200
.Fields.Update
End With

Set cdoMsg = New CDO.Message

With cdoMsg

Set .Configuration = cdoConfig
.From = <MAILBOX>
.Subject = <SUBJECT>
.HTMLBody = <TEXT>
.To = mailList
.Send
End With

Set cdoMsg = Nothing
Set cdoConfig = Nothing

 

[Special-K99]

Sounds like permissions.
Contact your IT department and ask them if a program is allowed to email outside your organisation.

 

[BensTooCool]

Well the thing is, if I open up outlook and send an email outside my organisation then it goes. I just can't do it through VBA so I wasn't sure if it was a permissions thing and wanted to try and resolve it before I go down the IT department route.

I read somewhere that it could be because when you use VBA it doesn't use all the outlook headers which is why it might not be clearing security?

 

[Special-K99]

If you open up Outlook you are using the permissions you personally have been assigned as a user, possibly set in Windows Group Policy.
If you use a program to send an email you are NOT using the same permissions, so they could be different.