qmail vs lsmtp

[David Villeger]

Hi.

Does anyone have any info/measurements regarding lsmtp (from LSoft)
compared to qmail?

I realize they work on different OSes. Assuming equivalent hardware, is
lsmtp faster?

Let's say I send one email to 10000 recipients. Let's say 40% go to AOL. 

AFAIK qmail will connect to AOL mail server 4000 times (4000
qmail-remote's, 4000 DNS requests, 4000 SMTP connections, ...).

Will lsmtp do the same or will it connect once to a AOL mail server and
inject the 4000 recipients?

Thanks.

David.