4
I understand that this is soemthing that basicly must be fixed in a new php release. Still that would mean this problem might be around for some because it will take a long time until most users will have that php version available on their hosting.
But those who know about this (possible!) reason now can point users into this direction to increase the allocatable memory for php. (which might still be difficult for those on shared hosting)
Still better than just getting no answer or 'no clue'.
For the mass mailing problem a 'dumb' non programmer question:Wouldn´t it be possible to change it so it does the work 'blockwise'
e.g. splitting in like mailing 50 users, than the next 50 ... and so on?
(guess that will increase the time needed to get the
mailing done but it would be better than not mailing at all)