Can't send multiple Outlook Messages - vba

Question

I can send a single Outlook message using Excel VBA. However, I want to loop through my rows and send an email for each row that meets a certain condition.
Unfortunately, when I put the email code in a for loop only one email gets sent or none at all (depending on how I structure the code).
Is there something about calling Outlook multiple times that I should know?
Private Sub CommandButton1_Click()
Dim OutApp As Object
Dim OutMail As Object
Dim myValue As Variant
Dim contactRange As Range
Dim cell As Range
Dim toAddy As String, nextAddy As String
Dim i As Integer
Set contactRange = Me.Range("ContactYesNo")
myValue = InputBox("Enter body of email message.")
For Each cell In contactRange
If Range(Cells(cell.Row, cell.Column).Address).Value = "Yes" Then
nextAddy = Range(Cells(cell.Row, cell.Column).Address).Offset(0, 5).Value
toAddy = nextAddy & ", " & toAddy
End If
Next cell
If Len(toAddy) > 0 Then
toAddy = Left(toAddy, Len(toAddy) - 2)
End If
For i = 0 To 1 'short loop for testing purposes
Set OutApp = CreateObject("Outlook.Application")
Set OutMail = OutApp.CreateItem(0)
With OutMail
.To = toAddy
.CC = ""
.BCC = ""
.Subject = "test email"
.Body = myValue
.Send
End With
Set OutMail = Nothing
Set OutApp = Nothing
Next i
End Sub

Answer 1

Take the CreateObject line out of the loop:
Set OutApp = CreateObject("Outlook.Application")
For i = 0 To 1 'short loop for testing purposes
Set OutMail = OutApp.CreateItem(0)
...

Answer 2

I've tried to clean up your logic stream but there are many unanswered questions due to the lack of sample data, explicit error messages and output.
Private Sub CommandButton1_Click()
Dim outApp As Object
Dim outMail As Object
Dim myValue As Variant
Dim contactRange As Range
Dim cell As Range
Dim toAddy As String, nextAddy As String
Dim i As Integer
Set outApp = CreateObject("Outlook.Application")
Set contactRange = Me.Range("ContactYesNo")
myValue = InputBox("Enter body of email message.")
With Worksheets(contactRange.Parent.Name) '<~~ surely you know what worksheet you are on..!?!
For Each cell In contactRange
If cell.Value = "Yes" Then 'no need to define a range by the range's address
nextAddy = cell.Offset(0, 5).Value 'again, no need to define a range by the range's address
toAddy = nextAddy & ";" & toAddy 'use a semi-colon to concatenate email addresses
End If
Next cell
End With
If Len(toAddy) > 0 Then
toAddy = Left(toAddy, Len(toAddy) - 2) 'I have no idea why you need to shorten the toAddy by 2
'only send mail where one or more addresses exist
For i = 0 To 1 'short loop for testing purposes
Set outMail = outApp.CreateItem(0)
With outMail
.To = toAddy
.CC = ""
.BCC = ""
.Subject = "test email"
.Body = myValue
.Send
End With
Set outMail = Nothing
Next i
End If
Set outApp = Nothing
End Sub

Answer 3

OK, so I re-wrote the code based on the feedback. I used a loop to send emails one at a time instead of concatenating the addresses together as I wanted to personalize each email. I also needed to create a form to handle the input as inputbox only accepts 256 characters.
A form was pretty much required as I needed to capture the subject line, message body, salutation, path the to the attachment etc.:
Private Sub CommandButton1_Click()
Dim subject As String, msg As String, path As String
subject = TextBox1.Value
msg = TextBox2.Value & vbCrLf & vbCrLf & "Sincerely," & vbCrLf & TextBox4.Value & vbCrLf & TextBox5
path = TextBox3.Value
UserForm1.Hide
Module1.sendEmail subject, msg, path
End Sub
I placed the email code in Module1. Note, be sure to set the .sentOnBehalfOfName attribute or Outlook will simply pick an account which may not be the one you want if you have multiple accounts registered:
Public Sub sendEmail(subject As String, msg As String, path As String)
Dim outApp As Object
Dim outMail As Object
Dim contactRange As Range, cell As Range
Dim toAddy As String, emailMsg As String
Dim count As Integer
Set outApp = CreateObject("Outlook.Application")
Set contactRange = Range("ContactYesNo")
With Worksheets("IT consulting")
For Each cell In contactRange
If cell.Value = "Yes" Then
count = count + 1
toAddy = cell.Offset(0, 6).Value
emailMsg = "Dear " & cell.Offset(0, 2).Value & "," & vbCrLf & vbCrLf & msg
Set outMail = outApp.CreateItem(0)
With outMail
.SentOnBehalfOfName = "me#someemail.com"
.To = toAddy
.CC = ""
.BCC = ""
.subject = subject
.Body = emailMsg
.Attachments.Add path
'.Display
.Send
End With
'log the action
cell.Offset(0, 1).Value = Now & vbCrLf & cell.Offset(0, 1).Value
End If
Set outMail = Nothing
Next cell
End With
Set outApp = Nothing
MsgBox "total emails sent: " & count
End Sub