Sending an E-mail when a Due Date is Reached

by Allen Wyatt
(last updated November 7, 2019)


Domenic has a worksheet that shows due dates for projects in column E. He knows he can use conditional formatting to show when the due date is reached (when it is the same as today's date), but what he really needs is an e-mail to be sent when the due date is reached. He wonders if there is a way to do this in Excel.

Actually, there is a way to do this, provided you don't mind using a macro. In addition, you'll need to send the e-mail via Outlook, which VBA will communicate with just fine. (Unfortunately, VBA cannot be easily used to connect with other mail clients.)

Here, for example, is a macro that will run whenever your workbook opens. It automatically checks each row in a worksheet, specifically keying on two things: the due date in column E and a "flag value" in column F. (This flag value is set by the macro. If column F contains the letter "S," then the macro assumes an e-mail has previously been sent.)

Private Sub Workbook_Open()
    Dim OutApp As Object
    Dim OutMail As Object
    Dim lLastRow As Long
    Dim lRow As Long
    Dim sSendTo As String
    Dim sSendCC As String
    Dim sSendBCC As String
    Dim sSubject As String
    Dim sTemp As String

    Set OutApp = CreateObject("Outlook.Application")

    ' Change the following as needed
    sSendTo = ""
    sSendCC = ""
    sSendBCC = ""
    sSubject = "Due date reached"

    lLastRow = Cells(Rows.Count, 3).End(xlUp).Row
    For lRow = 2 To lLastRow
        If Cells(lRow, 6) <> "S" Then
            If Cells(lRow, 5) <= Date Then
                Set OutMail = OutApp.CreateItem(0)

                On Error Resume Next
                With OutMail
                    .To = sSendTo
                    If sSendCC > "" Then .CC = sSendCC
                    If sSendBCC > "" Then .BCC = sSendBCC
                    .Subject = sSubject

                    sTemp = "Hello!" & vbCrLf & vbCrLf
                    sTemp = sTemp & "The due date has been reached "
                    sTemp = sTemp & "for this project:" & vbCrLf & vbCrLf
                    ' Assumes project name is in column B
                    sTemp = sTemp & "    " & Cells(lRow,2)
                    sTemp = sTemp & "Please take the appropriate"
                    sTemp = sTemp & "action." & vbCrLf & vbCrLf
                    sTemp = sTemp & "Thank you!" & vbCrLf

                    .Body = sTemp
                    ' Change the following to .Send if you want to
                    ' send the message without reviewing first
                End With
                Set OutMail = Nothing

                Cells(lRow, 6) = "S"
                Cells(lRow, 7) = "E-mail sent on: " & Now()
            End If
        End If
    Next lRow
    Set OutApp = Nothing
End Sub

When the macro runs (again, when the workbook is first opened), it checks each row in the worksheet to see if there is an "S" in column F. If not, then it checks to see if the date in column E is equal to today's date. If it is, then the code puts together an e-mail message (which you can modify, as desired) to be sent. The e-mail is displayed, and you can click on the Send button after making any desired changes. At that point, the worksheet is updated by placing the "S" indicator in column F and the date the e-mail was sent into column G.

Note that the macro assumes that the name of the project is in column B. This information is used to put together the message that will be e-mailed.


If you would like to know how to use the macros described on this page (or on any other page on the ExcelTips sites), I've prepared a special page that includes helpful information. Click here to open that special page in a new browser tab.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (474) applies to Microsoft Excel 2007, 2010, 2013, and 2016.

Author Bio

Allen Wyatt

With more than 50 non-fiction books and numerous magazine articles to his credit, Allen Wyatt is an internationally recognized author. He is president of Sharon Parq Associates, a computer and publishing services company. ...


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What is 9 + 8?

2021-01-12 15:46:10



Wondering if you could help. The macro seems exactly what I am looking for.
However I do have a few questions about it that I am not currently able to test out for myself.

1) If the macro returns multiple rows with the current date on, how would this be set out?
In the code it just states:
sTemp = sTemp & " " & Cells(lRow,2)
Would this result in one long line of cells that appear in the email body? If so is there anyway that I could get each individual row onto its own line?

2) Is there anyway that I could incorporate this into a table with the headers? (I do realised that I could input a line above to define the headers but I feel formatting may be an issue due to the different lengths of names etc.

Sorry for the questions however I am new to VBA and coding in general.

Please find attached a picture of a test spreadsheet I am work with. Also please be aware that I know I would need to personalise the columns to B-D for the information sent, and A for the date.
(see Figure 1 below)


Figure 1. Caption of Spreadsheet

2020-08-20 09:56:00

J. Woolley

You might try posting your question to wellsr VBA Q&A at

2020-08-19 09:34:40


Hi Alan,
I would like to seek your help on writing a code for one of my work sheet I have 100 certificates with specific expiry dates , would like to generate a reminder email 60 days prior to reach the expiry date. is it possible as all these belongs to different owners with different dates ranging 2020 -2023.


2019-11-14 16:38:20

Bob E

I think that if you have a column of email addresses, once you get to the row you want, you should be able to reference the contents of that cell to the .To parameter.

2019-11-14 02:55:01



Each project may be the responsibility of an individual person.

So would it be possible to send to an email address from a particular cell reference?

Any help with this would be greatly appreciated.

2019-11-13 03:35:31


@Bob E

Yes you can attach files use:

.Attachments.Add ("D:\tmp\picture.jpg") within the With/Endwith construct

substitute your own filepath/name in the parameters field.

2019-11-12 18:06:35

Bob E

Is it possible to attach files (spreadsheets) to the email? I would have the file name as a field in my spreadsheet, either with directories or with the directories hard-coded into the macro, but I would need to know the syntax (like .to or .cc) for an attachment. Thank you.

2019-11-07 13:34:21


Does it matter which worksheet is open for this to work, or should the relevant worksheet be selected first?

2019-11-07 09:49:03


Never mind - I found I had copied the macro into "Sheet 1" instead of "This Workbook".

2019-11-07 09:18:06


I really, really like this and I need it - I have a recertification file that I have added this macro to but I cannot get it to run unless I go into the VB & select the "Run" icon. What am I missing? Is this due to a security setting maybe?

2018-05-16 13:22:35

nancy belcher

can an e-mail be sent if the workbook is NOT opened for alerts about approaching dates

2018-03-02 16:50:28


' Change the following to .Send if you want to
' send the message without reviewing first

2018-03-01 13:28:33


How can this script be modified to cause the email to be sent automatically?

2018-02-05 20:09:45


why can't I change that s "flag Value" to 100%????

2018-02-04 23:26:07


Hi, what if I want to send email reminder every ten days before due date will be reached, if reach, and every next ten days for three times? and stop if they already send the project
I also wondering if I can send the email to a lot of people according to which group the project is held, so if a project is from group a, I will send the notification to everyone in group a.
please help me, thank you.

2017-11-25 06:20:35



This article helps a lots, what if I would like to attach one image in the same email ?

2017-07-27 07:05:54

Gettin Bedder

This macro works for me except it does not put the projects name into the email

2017-03-17 03:32:25


Amazing stuff worked well for me with some tweaks into this Code. Good work Alan :-)

2016-03-31 07:38:51


I could not get this to work until I c hanged the following;

lLastRow = Cells(Rows.Count, 3).End(xlUp).Row

lLastRow = Cells(Rows.Count, 2).End(xlUp).Row

I have never been able to get this to run when the worksheet is opened. I can only get it to run when I manually run it.

2016-03-29 00:20:52

Satyajit Pradhan

Dear Sir - all is well in this tip of sending mails via excel but no SCREENSHOT EXAMPLES given whichw e can relate and get exactly what to do.

2016-03-27 07:25:42


It's also quite easy to interface to a Gmail account using the CDO library.

2016-03-26 10:26:52

Bengt Eriksson

Dear Allan,
In response to your tip about sending e-mail through Excel, and particularly about your line "VBA cannot be easily used to connect with other mail clients.", I would just like to comment that it connects very well also to Lotus Notes, in more or less the same way as it connects to Outlook. On extra bonus with Lotus Notes is that you can choose - programatically - into which folder the mail that you are sending should go. If the folder does not exist, it is created.

Thanks for all your valuable tips.


2016-03-26 05:30:51


This is beautiful, but I would like to be able to send an sms on the due date, via thesim card in my modem. Thanks if you can point me to it.

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