Hi Eric:

I guess what I'm trying to get my brain around is where in the smtp process and under what circumstances the message '421_Timeout._Talk_faster_next_time' is generated. To start ss this a spamdyke thing or a qmail-smtp thing ?

Jeff

On 2/11/2024 12:30 AM, Eric Broch wrote:
Can you bump the idle timeout up to a couple minutes
On Feb 10, 2024, at 8:53 PM, Jeff Koch <jeffk...@intersessions.com> wrote:

    Hi List:

    Maybe you can advise on this.

    I am sending an email with a 23MB attachment from one QMT
    mailserver to another. Both QMT server are on the same AWS
    network. However, the email gets deferred with:

    21:03:30.201449500 starting delivery 513699: msg 397530692

    21:04:10.328736500 delivery 513699:
    
deferral:..............................failed_after_I_sent_the_message./Remote_host_said:_421_Tim
    eout._Talk_faster_next_time./


    Any idea what I should look at? It's only 40 seconds from the
    start of the delivery to the 'Timeout'.

    Spamdyke timeout settings on the receiving server:

    idle-timeout-secs=30
    connection-timeout-secs=1800

    Thanks,  Jeff Koch

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