Re: Issues with MailHost async queue send

dieter <[email protected]>
Newsgroups gmane.comp.web.zope.plone.user
Message-ID <[email protected]>
Luca Fabbri <[email protected]> writes:
> we have a Plone 4.3 site with two instances, where we are using the
> MailHost with the mail queue.We need this because we are using an old
> newsletter product (a branch of PloneGazette).
>
> All works perfectly, we only have problems when the server is
> restarted. When this happen we experience issue: it's like both Zope
> instances are trying to send the mail in the same moment and this
> action somehow this collide.

In one of my projects, the same queue is used by hundreds of portals.
Up to now, I have not had problem reports. However, emails are
fairly rarely sent. It is quite unlikely, that there are pending
email messages on server restart.

That said: the underlying "zope.sendmail" uses the "maildir" protocol
which has been specifically designed to avoid conflicts by
concurrent access. Therefore, your observation is a bit surprising.
In addition, its description is quite vague. Could you describe
more clearly what happens precisely on server restart?


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