Example of how to "attach a callback handler to the CFMAIL tag to get delivery notifications."

[AndyPetersonCFUGMgr]

Hi. I've been looking at the ColdFusion feature list and under Email Management, I read "Attach a callback handler to the CFMAIL tag to get delivery notifications." Can anyone provide a link to an example of what this looks like? Thanks in advance.

[Dave Watts]

I can't find anything that describes how this should work. I found out that OpenBD has a way to do this, so I took a guess that CF 2018 might work the same way.

CFMAIL / OpenBD CFML Manual

In OpenBD, you can add a CALLBACK attribute to the CFMAIL tag, and point the value to a CFC with two methods to handle mail being sent or not - it's not clear whether the success handler method should be named onMailSend or onMailSuccess, but that's not important I guess since my testing didn't get that far.

So I tried that in CF 2018, with a very simple component with two simple methods that did nothing except use CFLOG. But that didn't work. Instead, I got an error message from CF that the only allowed attributes for CFMAIL are:

BCC,CC,CHARSET,DEBUG,ENCRYPT,ENCRYPTIONALGORITHM,FAILTO,FROM,GROUP,GROUPCASESENSITIVE,IDNAVERSION,KEYALIAS,KEYPASSWORD,KEYSTORE,KEYSTOREPASSWORD,MAILERID,MAXROWS,MIMEATTACH,PASSWORD,PORT,PRIORITY,QUERY,RECIPIENTCERT,REMOVE,REPLYTO,SERVER,SIGN,SPOOLENABLE,STARTROW,SUBJECT,TIMEOUT,TO,TYPE,USERNAME,USESSL,USETLS,WRAPTEXT.

None of those look like they'd be used for a callback handler. So, my guess is that this feature was never actually put in, and that the marketing materials got slightly ahead of the actual product features.

Dave Watts, Eidolon LLC

[BKBK]

AndyPetersonCFUGMgr  wrote

Hi. I've been looking at the ColdFusion feature list and under Email Management, I read "Attach a callback handler to the CFMAIL tag to get delivery notifications."

I know of two notifications:

(1)

<cfmail failTo="admin@domain.com">

</cfmail>

which sets the mail envelope reverse-path, the e-mail address to which the recipient's mail server should send delivery failure notifications.

(2)

<cfmail>

<cfmailparam name="Disposition-Notification-To" value="someone@somedomain.com">

</cfmail>

which triggers a receipt notification prompt when the recipient opens the mail. Were the recipient to click on OK, a read-confirmation would be sent to the sender. There are more values of the name attribute of cfmailparam, including:

Message-Context

Apparently-To

Approved-By

Fax

Telefax

For-Approval

For-Comment

For-Handling

Mail-System-Version

Mailer

Originating-Client

X-Mailer

X-Newsreader

X-MimeOLE

User-Agent

Originator-Info

Phone

X-Envelope-From

Envelope-To

X-Envelope-To

X-Face

X-RCPT-TO

X-Sender

X-X-Sender

Posted-To

X-Admin

Errors-To

Return-Receipt-To

Read-Receipt-To

X-Confirm-reading-to

Return-Receipt-Requested

Register-Mail-Reply-Requested-By

Abuse-Reports-To

X-Complaints-To

X-Report-Abuse-To

Content-Alias

Delivered-To

X-Loop

Translated-By

Translation-Of

X-UIDL

X-URI

X-URL

X-IMAP

X-OriginalArrivalTime

Precedence

X-MSMail-Priority

X-Priority

Content-Length

Content-Conversion

Content-Class

Content-SGML-Entity

X-MIME-Autoconverted

List-Digest

Mailing-List

X-Mailing-List

List-Software

List-URL

X-Listserver

X-List-Host

Fcc

Speech-Act

Status

X-No-Archive

See cfmailparam CFML Documentation

[Dave Watts]

Yeah, I was expecting something to which we could directly attach code, but that sounds like a reasonable reading of the docs.

Dave Watts, Eidolon LLC