The SMTP server settings must be correctly specified.
In a hosted environment we strongly recommend using a server name rather than a specific IP address. Our SMTP service provider can change the associated IP address without prior notification, so using a name instead ensures that it will always resolve correctly.
To set the address correctly:
Click System, Options, System Control Options (Ribbon) or click System Control, System Options (Classic)
Click System Format, System E-Mail Defaults
Click the computer icon
In the SMTP Server Settings dialog box, enter theaccessgroup.smtp.com in the address field
Click OK.
Click OK.