Force an specific mail server

server_action_force_mail_server.py

# Available variables:
#  - env: Odoo Environment on which the action is triggered
#  - model: Odoo Model of the record on which the action is triggered; is a void recordset
#  - record: record on which the action is triggered; may be be void
#  - records: recordset of all records on which the action is triggered in multi-mode; may be void
#  - time, datetime, dateutil, timezone: useful Python libraries
#  - log: log(message, level='info'): logging function to record debug information in ir.logging table
#  - Warning: Warning Exception to use with raise
# To return an action, assign: action = {...}
if record.mailing_id:
  msg = "%s-%s" %(record.mail_server_id.name, record.mail_server_id.id)
  log(msg, level='MAILING')
  record.write({'mail_server_id': 3})