Using CDO/SMTP/TLS in VB6 to send email smtp.office365.com mail server

Question

I am searching for days to find out how can I set Office365 SMTP server in my VB6 application. My code is working properly with port 465 and other mail servers. BUT it is not working with port 587 and smtp.office365.com

Is there any way I could have TLS via 587 in VB6?

Thanks

Answer 1

With this code, I get to send mail using CDO to Office365.

    Private Message As CDO.Message
Private Attachment, Expression, Matches, FilenameMatch, i

Sub enviar_mail()

Set Message = New CDO.Message
Message.Subject = "Test Mail"
Message.From = "YourEmail@yourdomain.com"
Message.To = ""
Message.CC = ""
Message.TextBody = "my text body here"

Dim Configuration
Set Configuration = CreateObject("CDO.Configuration")
Configuration.Load -1 ' CDO Source Defaults
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = 2
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = "smtp.office365.com"
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = 25
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate") = 1
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/sendusername") = "YourEmail@yourdomain.com"
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/sendpassword") = "YourPass"
Configuration.Fields.Item("http://schemas.microsoft.com/cdo/configuration/smtpusessl") = True

Configuration.Fields.Update

Set Message.Configuration = Configuration
Message.Send

End Sub