Taryn Manning -- Orange is the New Black for Serial Texter ... 'Cause She's Goin' to Jail

Taryn Manning's phone won't be blowing up for the foreseeable future because the woman who's been harassing her with endless texts for months will be spending some time in the pokey.

Jeanine Heller -- who has now famously been in a bizarre battle royale with her former close friend for months -- was sentenced to 45 days in jail for harassing her by sending a slew of texts to Manning and then uploading a manifesto about the actress and posting it on Reddit.

After she gets out Heller will go to an inpatient psych center where she'll be evaluated and treated for around a week.