Productive Pod

Request for mailersend mailer service - being free

2

### Support guidelines - [X] I've read the [support guidelines](https://github.com/firefly-iii/firefly-iii/blob/main/.github/support.md) - [X] My request is not listed as [a very good idea, but unfortunately...](https://docs.firefly-iii.org/firefly-iii/more-information/what-its-not/) - [X] I've used [the search](https://github.com/firefly-iii/firefly-iii/issues?q=is%3Aissue)...

ERROR: Could not find a version that satisfies the requirement bleach[css]~=6.0

2

## Steps to Reproduce - initial setup done . - when I run the command: `pip install -r requirements_dev.txt` - it shows error ``` ERROR: Could not find a version...