For H1B visa, After lottery selection, within how many days the rejection letter will bevsent?

USA H1B Visa
1

For H1B visa, After lottery selection, within how many days the rejection letter will be sent? ?

2

I expect the rejection letters to start going out soon. It may happen in next 2 weeks, or USCIS may delay it until May 27 when they are done with first round of PP applications (who carry an SLA).