Unable to send emails with MAMP

[eluser]Wit07[/eluser]
Thank for your answer ortwin.van.vessem.

Now I get an error into my log: Failed to send AUTH LOGIN command. Error: 530 5.7.0 Must issue a STARTTLS command first. a1sm58176507eem.1 - gsmtp

Can you tell me how did you set up your different files (php.ini, main.cf and CI source file)?