I have just sent my first major newsletter to a total of 957 subscribers, using Acajoom Pro 3.0.9. I haven't set up a cron job yet, so I sent it using Process Queue every few minutes, using phpmail and 80 mails at a time. A couple of times I used the cron job URL to see if this would work, and all seemed fine.
However a number of emails were not received by the recipients. I believe this was a mail server problem since I didn't receive a couple of other emails I know were sent at about the same time. I have asked my host if there was a particular problem but haven't heard back yet.
In the meantime I'm trying to work out if there was a point in the sending process where no emails actually went out from my mail server, so that I can resend to the correct subscribers. What order is the sending done in? From mailings.acajoom.php and class.acajoom.php it looks like it is done in email address order: is this correct? Unfortunately this makes my job more difficult since this does not tie in with those users who have definitely received it (according to HTML reads) and those I know not to have received it.
