iOS Question SMTP not sending email

[mcqueccu]

I am having problem sending email with SMTP. Same code and Credentials work well in B4A and B4J but B4i is giving the error below

started
false
<B4IExceptionWrapper: Error Domain=SKPSMTPMessageError Code=-3 "Unable to connect to the server." UserInfo={NSLocalizedDescription=Unable to connect to the server., NSLocalizedRecoverySuggestion=Try sending your message again later.}>

Here is my code

Sub Process_Globals
    Public App As Application
    Public NavControl As NavigationController
    Private Page1 As Page
    Private xui As XUI
    
    Dim smtpServer As String = "smtp.gmail.com"
    Dim smtpPort As Int  = 587
    Dim smtpUserEmail As String = "[email protected]"
    Dim smtpUserPassword As String = "xxxxxxx"
    
    Dim receipientEmail As String = "[email protected]"
End Sub

Sub Button1_Click
    Log("started")
    Dim smtp As SMTP
    smtp.Initialize(smtpServer, smtpPort,smtpUserEmail, smtpUserPassword, "smtp")
    smtp.StartTLSMode = True
    smtp.UseSSL = True
    smtp.Subject = "This is Subject"
    smtp.Body = "Hello world"
    smtp.To.Add(receipientEmail)
    smtp.Send
    Wait For smtp_MessageSent(Success As Boolean)
    Log(Success)
    Log(LastException)
End Sub

 

[Erel]

First step is to add smtp.DebugLogs = True (maybe the property name is different. you will find it)

 

[mcqueccu]

This is what the debuglogs says

Application_Start
Application_Active
started
C: Attempting to connect to server at: smtp-relay.sendinblue.com:587
Beginning TLSv1...
false
<B4IExceptionWrapper: Error Domain=SKPSMTPMessageError Code=-3 "Unable to connect to the server." UserInfo={NSLocalizedDescription=Unable to connect to the server., NSLocalizedRecoverySuggestion=Try sending your message again later.}>

 

[Erel]

1. Are you sure that the device is connected to the internet?
2. Don't set both StartTLS and UseSSL to True. They are exclusive.

 

[mcqueccu]

1. Yes, the device is connected to the internet, and I am using Hosted Builder to compile
2. Upon your advice (am using using only one at a time)

Findings

smtp.gmail.com is working with StartTLS = True

whiles

smtp-relay.sendinblue.com works with useSSL = true