Option Explicit
Sub Send_Email_with_Signature()
Dim Outlook_App As Object
Dim msg As Object
Dim sign As String
Dim i As Integer
Set Outlook_App = CreateObject("Outlook.Application")
Dim sh As Worksheet
Set sh = ThisWorkbook.Sheets("Data")
For i = 3 To sh.Range("B" & Application.Rows.Count).End(xlUp).Row
If sh.Range("A" & i).Value = "" Then ''Check Skip
Set msg = Outlook_App.CreateItem(0)
With msg
' .display
End With
sign = msg.htmlbody
With msg
.To = sh.Range("C" & i).Value
.Subject = "Payment Reminder"
.htmlbody = "Dear <b>" & sh.Range("B" & i).Value & "</b>,<br><br><p>Please pay your bill for below given service(s)- </p>" & _
"<ul>" & _
IIf(sh.Range("D" & i).Value <> "", "<li><b style='color:DodgerBlue'><u>" & sh.Range("D2").Value & ":</u></b> " & Format(sh.Range("D" & i).Value, "0.0") & " is pending.</li>", "") & _
IIf(sh.Range("E" & i).Value <> "", "<li><b style='color:Tomato;'><u>" & sh.Range("E2").Value & ":</u></b> " & Format(sh.Range("E" & i).Value, "0.0") & " is pending.</li>", "") & _
IIf(sh.Range("F" & i).Value <> "", "<li><b style='color:green;'><u>" & sh.Range("F2").Value & ":</u></b> " & Format(sh.Range("F" & i).Value, "0.0") & " is pending.</li>", "") & _
IIf(sh.Range("G" & i).Value <> "", "<li><b style='color:Orange;'><u>" & sh.Range("G2").Value & ":</u></b> " & Format(sh.Range("G" & i).Value, "0.0") & " is pending.</li>", "") & _
IIf(sh.Range("H" & i).Value <> "", "<li><b style='color:Blue;'><u>" & sh.Range("H2").Value & ":</u></b> " & Format(sh.Range("H" & i).Value, "0.0") & " is pending.</li>", "") & _
"</ul>" & _
sign
If sh.Range("H1").Value = 1 Then ''' check option button value
.send
Else
.display
End If
End With
Set msg = Nothing
End If
Next i
Set Outlook_App = Nothing
If sh.Range("H1").Value = 1 Then MsgBox "Done"
End Sub
Source:https://www.youtube.com/watch?v=A6tggcOV6ts