gmail and sign-in attempt prevented

General
1

Hi, I’ve made and web-app. Now I want to add sending mail. But 2 out of 3 email addresses I’ve tested with fails. Google reports: Sing-in attempt prevented and says my app does not meet modern security standards.

So how to I get this to work. ?? how do I set up the gmails to work… or is it something to be done at the xojo end of my problem ?

code for sending is:
dim myfile as Folderitem = SpecialFolder.UserHome.child(“Downloads”).Child(“test_download.pdf”)
’
dim file as new EmailAttachment

sendMailsocket.connect
sendMailsocket.Secure = TRUE
sendMailsocket.ConnectionType = 2
sendMailsocket.SMTPConnectionMode = 0
SendMailSocket.Port = 465 // Check your server for the property port # to use
SendMailSocket.Address = “smtp.gmail.com” // your SMTP email server
sendMailsocket.Username = “**" // username, full email
sendMailsocket.Password = "” // password

// Create the actual email message
Dim mail As New EmailMessage
mail.FromAddress = “helge.tjelta@gmail.com”
mail.Subject = “Test Email from Xojo”
mail.BodyPlainText = “Hello, World! sendt som shortcut”
mail.Headers.AppendHeader(“X-Mailer”, “Xojo SMTP Example”) // Sample header
mail.AddRecipient(“helgetjelta@me.com”)

file.MIMEType = “application/pdf”
file.loadfromFile(myfile)
'file.loadFromfile(GetFolderItem(myfile.NativePath, folderitem.PathTypeNative))

mail.Attachments.Append file

// Add the message to the SMTPSocket and send it
SendMailSocket.Messages.Append(mail)
SendMailSocket.SendMail

2

Log in to each account through your browser and enable access for less-secure apps at this link. :slight_smile:

With “less secure access” turned off, gmail is enforcing oAuth 2.0.

3

But is there a way to make my app more secure ?

4

Like @Christian Wheel say use the oAuth 2.0
here is the api link OAuth2

5

Don’t use Gmail for sending emails. Really.

Use free plans of SendGrid or Mandril or someone else.

6

Your connectiontype property is incorrect for one thing. You should be using value 5, TLSv1.2. Also, I highly doubt they use port 465 any more.

7

OK, lots of good stuff here. But about SendGrid or Mandril, how do I set the email so that is is from an actual sender, the email send should show up the that users outbox… this is a system for contracts. So the senders outbox should get a copy and that email going out has to come from the users email to the customers email.

8

And we are not talking big time number of emails… maybe 100 to 200 each day in the future. Not big as send grid … :slight_smile:

9

sendGrid was really nice thanks!