Does anyone know of email clients that would allow such plugins like gmail/outlook ?

[samipshah]

Does anyone know of email clients that would allow such plugins like gmail/outlook ? Specifically I am looking for a desktop mail client like outlook and writing an Odoo plugin for that. Currently outlook has support but outlook is very expensive. And gmail has support but it is web based. Our current setup is Gmail as mail server and outlook as the application we use on Microsoft desktop. We are integrating with Odoo and this has been a challenge . I see a lot of value in having Odoo plugin connected to Odoo database. As before Odoo integration complete workflow is based on email. So we would like to maintain that but avoid Outlook because its license is very expensive. I am wiling to write the plugin myself and commit the code to open source.