I'm trying to activate an account for EPiServer Mail but after submitting the form I'm receiving the following error. Can anyone help or suggest anything?

Thanks,

 Justin

Error receiving data from socket.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: Quiksoft.EasyMail.Internal.ᜀ: Error receiving data from socket.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. 

Stack Trace:

[ᜀ: Error receiving data from socket. ]
   Quiksoft.EasyMail.Internal.ᜧ.ᜀ(String& A_0, Int32 A_1) +331

[SMTPConnectionException: Error receiving data from socket. ]
   Quiksoft.EasyMail.SMTP.SMTP.ᜀ(String A_0, EmailMessage A_1, ᜃ A_2, SMTPQueueType A_3, Boolean A_4) +129
   Quiksoft.EasyMail.SMTP.SMTP.Send(EmailMessage MessageObj) +53
   EPiServer.Mail.Core.Data.EPiServerMailFactory.SendActivationOrderMail(IActivationRequest licenseRequest) +1223
   EPiServer.Mail.Core.EPiServerMailHandler.SendActivationOrderMail(IActivationRequest activationRequest) +5
   EPiServer.Mail.Core.Web.ActivateAccount.ButtonSubmit_Click(Object sender, EventArgs e) +148
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
   System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746