I'd just like to get a steer on how to handle this situation. I have been leading a big planning project for about a year and was asked to present it to the department (about 40 people) on teams. The project has been approved and will start running next year. I am really proud of the work and it was a huge undertaking and the approval process was very rigourous.
I have a colleague who I like as a person but it known to be difficult. I am one of the few people who will work with her but I actually feel that I can't any more. She was involved in this project only in a very minor peripheral way. Towards the end of my presentation she butted in with her camera off and told me quite aggressively that I was wrong about a very very small detail and it wouldn't be approved and was problematic. She then talked over me as I tried to give additional clarification and sniggered at my explanation then fell silent. No thanks for explaining. The meeting was recorded and I've looked back at it.
She then sent a very long ranting email to me and my senior manager insinuating that I am incompetent, unaware of regs and processes, the work is problematic, misguided and uninformed and won't be approved. This is all absolute bullsh*t. I am absolutely professional, very informed and very competent. The work has been approved and we have had amazing feedback from multiple sources.
I feel hurt on a personal level and very annoyed on a professional level. I will speak to my line manager but I know he won't do anything.