[wp-hackers] How to throttle emails on hosts with email sending limits?

Otto otto at ottodestruct.com
Fri Oct 9 20:31:54 UTC 2009

Looking at the plugin, it appears to hook to comment_post to send the
notification emails.

I'd rework it a bit. Change the comment_post hook to run a new
function which does a wp_schedule_event to a new action (maybe
stc_send_notifications?). Then hook that to a new function which does
the following:
1. checks to see if anything needs sending still
2. sends emails up to limit
3. if still some left, do another wp_schedule_event to rerun at some
future period of time.

Sent from Memphis, TN, United States

On Fri, Oct 9, 2009 at 2:39 PM, William Canino
<william.canino at googlemail.com> wrote:
> One of my blogs is on 000webhost and I use Mark Jaquith's "Subscribe
> to Comments" plugin among others and its hosting account was suspended
> one night when a discussion, well, got out of hand.
> 000webhost's email sending limit is 'No more than 30 emails per 5
> minutes and no more than 100 emails per hour.'
> 000webhost's PHP config doesn't support SSL/TLS so I can't send via
> Gmail. In any case, Gmail also has a limit of "100 people at a time".
> So as a stopgap I added a "ORDER BY comment_date DESC LIMIT 28" clause
> to Jaquith's plugin and crossed my fingers.
> Before I go study how to add the Throttle plugin to Swift Mailer and
> use Swift as a wp_mail() replacement, I thought of coming here to ask
> if someone has already made or begun a throttling solution or plugin.
> A plugin like this may be interesting to write for public release
> because, for example, in this case, 000webhost has two limits and
> gmail has another kind of limit.
> W
> P.S. It amuses me how often various plugins just "do their own thing"
> to send their mail.
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