Instagram Direct Messages?

Hi everyone,

What are the best 2017 tactics for mass direct messaging on Instgram?

1. links are banned in direct messages
2. Messaging a "non-follower" puts your message in the "request" box.
3. It's getting harder…

I want mass IG accounts spamming to my landing pages. What is the best way!? What if I "@mymainaccount" so they see my BIO? Or is the a huge flag on my main account?