SMTP server error: 4.7.1 Error: too much mail from xx.xx.xx.xx

[Frank Barcenas]

I have moodle installed on my webserver. At peak times during the month, I begin to see this error: SMTP server error: 4.7.1 Error: too much mail from xx.xx.xx.xx in the logs. What value do I need to increase in my main.cf? Or is there some sortof whitelist that I can use so that it won't limit my webserver, even though they are one in the same.

Frank

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[Wietse Venema]

Frank Barcenas:

> I have moodle installed on my webserver. At peak times during the month, I
> begin to see this error: SMTP server error: 4.7.1 Error: too much mail from
> xx.xx.xx.xx in the logs. What value do I need to increase in my main.cf? Or
> is there some sortof whitelist that I can use so that it won't limit my
> webserver, even though they are one in the same.

Look for these settings:

$ postconf -n | grep smtpd_client

Someone put these settings into your main.cf.

Wietse

[Frank Barcenas]

Awesome! Thank you. Can't wait to see if it happens again this month.

Look for these settings:

    $ postconf -n | grep smtpd_client

Someone put these settings into your main.cf.

        Wietse

[Wietse Venema]

Wietse:

> Look for these settings:
>
> $ postconf -n | grep smtpd_client
>
> Someone put these settings into your main.cf.

Frank Barcenas:

> Awesome! Thank you. Can't wait to see if it happens again this month.

Note the default smtpd_client_message_rate_limit is zero, i.e. no limit.

If you need finer control, for example, by sender address, you would
need to use a policy server (postfwd, for example).

Wietse