In Odoo18, I can't able to send mail from Email Marketing module without run manually the 'Process queue' and 'Email Queue Manager'. Actually, If I try inside Email Marketing module by clicking 'send' and 'refresh' button several times doesn't sent the mail. Though I selected 'execute every 1 minutes'.
Here I configure 'outgoing mail server' as follows:
Mail Marketing: Process queue [Technical → Schedule action]
Mail: Email Queue Manager
Configure [User → groups → email marketing/user]
Add dedicated server [Email marketing → settings] added outgoing mail server :
Created alias domain for the mail [Settings → email → ‘###.com.##’]
Manage companies [Settings → email domain]
