Has anyone noticed a lot of soft bounces recently for the below domains recently:

wandoo.fr
laposte.net
orange.fr
free.fr

We have sent to these domains before with no problem, however in a send last week we received the below server responses:

SERVER RESPONSES:
WANDOO.FR http://WANDOO.FR

smtp; 550 5.2.0 Mail rejete. Mail rejected. ofr_506 [506]

LAPOSTE.NET http://LAPOSTE.NET

delivery temporarily suspended: host smtpz4.laposte.net[]
refused to talk to me: 421 4.3.2 No system resources

ORANGE.FR http://ORANGE.FR

delivery temporarily suspended: host smtp-in.orange.fr[]
refused to talk to me: 421 mwinf5c42 ME Trop de connexions, veuillez
verifier votre configuration. Too many connections, slow down. OFR004_104
[104]

FREE.FR http://FREE.FR

smtp; 550 Too many spams from your IP ()

I looked up our Return Path Sender Score and it is 99 (not sure if that even matters anymore?).

Thanks so much!
VW