Please read my info below.
Proxies.
Instagram proxies need to be private and virgin , there a app on massplanner to test proxies if the proxies are compatable with instagram.
you need to use one proxie for each account , the proxie must also be the same proxie the account was created with , if you buy proxies ,please provide your proxies to make the accounts.
Verifying accounts .
To verify accounts you need sim cards
And usually pre activated so can get the verify code straight away , try ebay there usually around 100 for £25 .
Email
There no reports on any email problams with mail.com at all.
Bio
If the bio is not setup properly when created can lead to getting ban .
Adding a account to a bot.
When your account is bio related to your niche, and everthink is correctly setup ,and it all looks good , you know need to add the account to a bot ,usally followliker or massplanner make sure to add the proxie that was used to create the account , make sure to follow in small very small steeps for a new account , do not unfollow anyone untill the account has a nice built up follow count, then slowly unfollow , your aim as max should be 5k followers per month ,and the account should self gain 200 to 400 followers a day on it own .......
I am not telling you how to do engagement, as i want you to read and understand Instagram more .
There plenty of method info on this forum to make a heigh engagement account for ig.
There are other apps except massplanner and followliker but they seem to be most used.
But there other apps not on this forum that can also help in instagram followers , but i think that massplanner has a lot of features ,but you need to buy them as a extra plugin , i am sure that followliker has a lot of hidden features so i suggest always read the manual .
Once you master how to get heigh engaged accounts , each account with 5k heigh engaged niche ,will be worth around $100 to $140 per account, as you can see there huge money to be earnt with ig.
Please take note to everythink said above.
Good luck.