After installation postsrsd we started to get more junk mails

[dengul23]

After installation postsrsd we started to get more junk mails. I feel that depends on amavis configure but I don't catch where it exactly.
I use postfix as relay to Exchange.
In logs I see that amavis check emails but accept all emails, spam too.
If stopped postsrsd service then spam stopped too.
How I can fix it?

[benchonaut]

if sending to large providers ( especially MS, DKIM helps with them)

• check your ip/CIDR/ASN against blacklist and do delisting if necessary
• check the srs-domain against blacklists and do delisting if necessary
• sign up to microsoft SNDS to get notified if your ip is blocked
• engage SPF
  ( optional , but greatly improves the situation)
• engage DKIM
• engage DMARC

regards