Pretty easy to install:
that's what is mentioned in the text file i downloaded with the hack, doesn't seem as complicated as the marks above indicated. Just a simple one file upload and no template changes done by users at all, should clarify this in the first post.

just an advice for ppl out there, i was doing this manually for inactive users and i got some responses in new threads stating that "we trusted your website with our email addresses, you shouldn't be threatening us with your emails and some other users reported it as spam "which will cause huge forums to collapse ASAP as most hosting service providers don't allow spam, so they may stop your hosting plans for the violation of one of their policies" i myself got a warning before i stopped sending emails to inactive users"

Requesting a feature in this hack:
-To have a link within the email msg stating if you don't want to receive this email again please "click here", to unsubscribe the user from such mailing list if he desires, will protect us all from being reported as spammers.
-To have the ability to allow/disallow forum users from setting pre-reminder time.

Finally:
thanks for the hack, pretty good idea to have this managed automatically.

That's quite easy to add in the Admin options in the existing mod. Just create your email content to include the link. Mine provides specific details:

Try the solution above. I think this option is superfluous and probably self-defeating. If it were included, I'd disable it. Just use a reasonable repeat interval, not shorter than once per month. And include the "unsubscribe" instructions in every email your forum sends out.

@djbaxter
thanks for the reply. Though, I don't want the user to disable receiving emails from admins because of the reminder. There are account deletion notices, banning notices and finally warning notices i am sending to the whole usergroup whenever a user of the usergroup violates the forums rules. I don't want a bunch of users to disable receiving emails from admins just because of the reminder, i kinda want it to be separate, i don't know if this is clear enough or not.

About the 2nd point, you misunderstood me as i wasn't clear enough, I want the user to have the option of setting the time to a week/2 weeks/1 month/2 months/3 months/6 months from his profile, not totally disabling the reminder, some users though won't be able to set this time so the emails sent to them will take the default period set in the hack options.

the 2nd point is not that important but i think my forums might benefit from such a feature.

Will this mod work on 3.5.x?

dont see why not - try it?

Quick question.
After installing it worked perfect. I then re-ran it manually again a bit later after chaning the time frame from 7 days and it now is showing this:

Inactive User Reminder Emails

mailing example@yahoo.com (failed)
mailing example2@sbcglobal.net (failed)
mailing example3@centene.com (failed)

Done

Those are examples of course of email addresses.

Does this check for validity of email address and this could cause it or am I looking at a host problem?

Thanks

you will get a failed if for whatever reason the php mail command fails.

i really couldn't speculate as to why

So it isn't checking for the email account being valid then so it has to be my hosting messing with sendmail again.

Okay...thanks :)

Ideally, it would be nice if this hack also allowed an option to delete a user after X notifications and no activity (or posts).

Edit: or at least move them to another usergroup..

That would be a great addition..