Email Function not working

[Wynand]

Hi, The email function does not work. Besides settings that seems to be incorrect (Have been using the built-in function) the email button when creating an invoice has disappeared. Please help?

[lubos]

For sending emails, custom SMTP now required

In previous versions, Manager could send emails without setup. This no longer works. Background Email protocol is abused by spammers who send unsolicited emails and as a result, email providers are employing various anti-spam detection mechanisms to be able to tell legitimate emails from spam emails apart. In order to make sure that emails sent from Manager are not considered as spam, we’ve been using reputable SMTP relay service from Mailgun.com Unfortunately Mailgun.com has shut down our a…

[Daryl_Albert]

I have just tried sending a invoice and it comes up with the following? How do i fix this problem

System.Net.Mail.SmtpException: System.Net.Mail.SmtpException: Syntax error, command unrecognized. The server response was: 5.7.0 Mailgun is not loving your login or password
at System.Net.Mail.RecipientCommand.CheckResponse(SmtpStatusCode statusCode, String response)
at System.Net.Mail.SmtpTransport.SendMail(MailAddress sender, MailAddressCollection recipients, String deliveryNotify, Boolean allowUnicode, SmtpFailedRecipientException& exception)
at System.Net.Mail.SmtpClient.Send(MailMessage message)
at ManagerServer.HttpHandlers.Businesses.Business.Email.Post()

[lubos]

See the link to the topic above.