When you want to send an e-mail from a mailclient, you instant get a message:
553 sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)
The settings of the outgoing mail server (SMTP) are not correct:
Outgoing mail, sent from ...@client.com is sent through a sever that is allowed to send mail for this domain. This is called a SMTP server.
To prevent that a SMTP sends spam, Outlook needs to notify the server (Authenticated SMTP)
Abovementioned message is caused due to:
- you set the wrong SMTP server.
- you set the right SMTP server, but not the right authentication.
Check and correct the SMTP settings in Outlook.
Below is the method described for Outlook 2003.
- Open Outlook
- Go to 'Tools' | 'E-mail accounts'
- Choose: "(*) View or change Existing e-mail accounts", then click [Next]
- Open the e-mail account that you use
- Fill in at Outgoing e-mail server: mail.client.com
- Choose [more settings], tab Outgoing server
- Fill in:
The outgoing server (SMTP) requires authentication
Log in using:
User name: Your e-mail address
Password: Your password, this is the same password that you use for your incoming e-mail (POP)
- Choose [OK], and click [Finish]