Since version 2.7.1, number of simultaneous transfers (MAXTRANS) can be as high as 999 (1000)
What about the MAXTASK and TRANTASK parameters? And What about SSL transfers?

Parameters values are platforms dependant:
On the UNIX value are to be set as bellow to handle up to 1000 transfers:

MAXTRANS=1000
MAXTASK = 64
TRANTASK= 16

Regarding SSL parameters:

The SSLMTASK is no longer effective; its value is now deducted from the MAXTASK parameter

So, for up to 1000 transfers with both non SSL and SSL:

MAXTRANS = 1000
MAXTASK = 64
TRANTASK=16
SSLTTASK=16