[Zope-dev] What to do when one mail recipient fails out of several?

[Andreas Jung]

This approach makes no sense. Email uses the store-and-forward principle.
This means your local mailserver could accept the delivery but it can never
guarantee
you that the mail is really delivered to the recipients. It can only confirm
that
it accepts the email for delivery and nothing else.

Andreas

----- Original Message -----
From: "Lennart Regebro" <lennart@regebro.nu>
To: <zope-dev@zope.org>
Sent: Thursday, November 15, 2001 06:34
Subject: [Zope-dev] What to do when one mail recipient fails out of several?


> There is currently a poposal to make MailHost transactional, so you can be
> sure that you sent the mail. However, when you have multiple recipients,
> that doesn't solve the problem, because then you actually get "half done"
> transactions.
> Smtplib.SMTP.sendmail is nice enough to send back a list of which mails
> failed, but Zope can't really do much with that list. If it returns an
> error, the user will resend the mail to all recipients, if it ignores it
(as
> today) the user will think all mails went through.
>
> The problem really lies in the binary mode of error/success that web will
> have in this case. There is no partial success, either you get up an error
> page or you don't.
>
> My thought about how to solve this is to make an addition to
> smtplib.SMTP.sendmail(), an new parameter "stopOnRcptErr" or something,
that
> defaults to "False", which gives todays functionality. MailHost could then
> call smtplib.SMTP.sendmail with stopOnRcptErr=True, which would then raise
a
> SMTPSenderRefused error if any of the recipients fail.
>
> My questions:
> 1. What do you think? Is this reasonable?
> 2. Does anybody know where to send suggestions for changed Python stuff?
> python-help doesn't seem right...
>
>
>
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