Have a large database of Linkedin users. How to contact them?

[Yos]

I have a large database with over 100k of Linkedin users, I want to contact them to make them an offer.

Is any way how to mass contact them without all my messages going to scam or without my contacting channel not being blocked?

I've heard if I use any mass dm through email it will be under GDPR and all my emails will to spam. What about if I will use any mass email dm services from the marketplace? What deliver rates can I expect?

The same question regarding mass dm on Whatsapp.

I'm also thinking to hire someone from India or Philippines to cold call them, but I also heard that mass cold calling can face blocks from Whastapp. What is the safe numbers of cold calls per day?

Any other options how to contact them with a good response rates?

 

[Alish]

You can try sending WhatsApp through official WhatsApp api and also SMS through sms gateways.

Most email will likely go to spam folders and never be seen

 

[Webe]

mass messaging could lead to blocks if it’s perceived as spammy...i think you can try alternative methods such as targeted advertising and content marketing