Donald G Porter <dgp@cam.nist.gov> wrote:

Here's a challenge. What's wrong with the following DTML snippet?

<dtml-sendmail mailhost="MailHost"> To: <dtml-var email> From: Example.Net <WebStaff@example.net> Subject: Joining Example.Net

To complete your registration with Example.Net (blah blah...)

</dtml-sendmail>

On my Zope site I had a similar DTML snippet, and it refused to send the mail message, but it also gave no error message that I could see, so debugging it took a ***long*** time. Do you see the problem?

Here's what worked for me:

<dtml-sendmail mailhost="MailHost"> To: <dtml-var email> From: "Example.Net" <WebStaff@example.net> Subject: Joining Example.Net

To complete your registration with Example.Net ...

</dtml-sendmail>

Those double quotes can make a world of difference. I'm posting this to the Zope mailing list in the hope that it will keep others out of this blind alley which cost me so much time and frustration. Good thing my site is for fun and not for profit!

I have another fun one for you. Imagine a ZClass which sends e-mail automagically as its state changes, and embeds attributes like its id and title in the mail. The DTML method which sends the mail looks like:: <dtml-sendmail mailhost=MailHost> From: Zope Guru of the Week <ZGotW@palladion.com> To: <dtml-var "_.string.join( toAddressList, ',' )"> Cc: <dtml-var "_.string.join( ccAddressList, ',' )"> Subject: [ZGotW] Issue #<dtml-var id> (<dtml-var status>) Date: <dtml-var ZopeTime> <!-- The following method uses title and absolute_url --> <dtml-var issue_txt> </dtml-sendmail> </dtml-let> The sendmail tag seems to push the MailHost onto the top of the acquisition stack, so that id, title, and absolute_url now render via the folder containing the MailHost, rather than the ZClass instance whose method is being called! The fix is to externalize the values before entering the sendmail tag:: <dtml-let issueID=id issueURL=absolute_url issueTitle=title> <dtml-sendmail mailhost=MailHost> From: Zope Guru of the Week <ZGotW@palladion.com> To: <dtml-var "_.string.join( toAddressList, ',' )"> Cc: <dtml-var "_.string.join( ccAddressList, ',' )"> Subject: [ZGotW] Issue #<dtml-var issueID> (<dtml-var status>) Date: <dtml-var ZopeTime> <dtml-var "issue_txt( _.None, _ , issueTitle=issueTitle , issueURL=issueURL )"> </dtml-sendmail> </dtml-let> Ugh! -- ========================================================= Tres Seaver tseaver@palladion.com 713-523-6582 Palladion Software http://www.palladion.com