How many emails per task?

How many emails should I use in each project?

Should I use all 750 in every project or should I just put 10-20 in each project?

Thanks!

750 in each project? lol. Definitely not needed.

Just throw a few accounts in there. If you're using scheduled posting and making x amount of accounts per site, then you would need to have at least that amount of email accounts in there, unless you're using a spun catchall of course

I usually use between 3 and 5 per project, unless I'm posting to the same sites using multiple accounts like S4nt0s said.

Also check the box 'time to wait between two logins', this stops them getting banned - I set this quite high myself since my campaigns run for so long anyway - but see what works best for you.