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News and Announcements => General Discussion => Topic started by: TazzxCc on January 26, 2026, 03:43:18 AM

Title: Disable SMTP Auth
Post by: TazzxCc on January 26, 2026, 03:43:18 AM
Hi,

I guess most people run RC on the email host as do I. As a result, I want to turn off SMTP AUTH for 127.0.0.1

My sendmail is already configured to do this, however, RC insists on trying to do SMTP AUTH:

<mjmds6dr> PHP Error: SMTP server does not support authentication (POST /rcmail/?_task=mail

I have disabled auth where I can, smtp_user is NULL (tried null) and the same with smtp_pass and smtp_auth_type

Any pointers please ?

Thanks !
Title: Re: Disable SMTP Auth
Post by: alec on January 26, 2026, 06:07:43 AM
There's this in the defauls.inc.php file:
// Note: To disable user authentication set smtp_user and smtp_pass to ''.
I recall a fixed bug that maked it not working, so make sure to use most recent version.