Email Marketing Software that lands mails in gmail inbox

Hello, I am on the search for an email marketing service that lands emails in the gmail inbox. I cannot use a third party service since they conduct manual reviews and do not allow me to run my campaigns on their platforms. I have a VPS server, a domain and using this software called Gammadyne. It works fine except for inboxing in gmail. I have warmed up the server for more than a month and still no luck. Any help or leads would be most welcome.

Thanks

When you have completed your warmup you need to check your list and content your sending .. Try with small campaigns so that you can compare results ..

Good luck

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