Any advice on Reddit bots

I am making a project that takes posts from a source subreddit and posts them to a target subreddit. At this moment I am testing against a subreddit I created for this specific purpose however despite only posting 3 posts, Reddit marks these posts as spam and they automatically appear in the mod queue? Is it an issue with the accounts? They were bought on a service and were aged naturally to just over 1k karma. Also do not appear to be banned or have exceeded any rate limits. The library used in the question is PRAW

personally if you have some nice aged accounts
ide go manual and keep them away from bots

Unfortunately I can’t do that, I need this to work so that I can automate posting a few things. Everyone seems to have accounts posting lots using praw and my 3 Reddit posts made by 3 different accounts using OAuth and delays get marked as spam on my own subreddit lol

Reddit will filter out the posts with links, Make sure to remove links from posts before posting to your target subreddits. also make sure there are not any Moderator bots on the target subreddit.

Is it possible that the quality of your post is too low?