To send email through AriticMail using Magento we recommend the ASchroder.com SMTP Pro Email free extension. Once installed you need to change at least the following options:
- Authentication – Login
- Username – AriticMail Username
- Password – AriticMail Password
- Host – mail.ariticmail.com
- Port – 25
- SSL Security -SSL TLS
The following image shows these settings: