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[twtr]

HI All,

We are getting continual 451 errors when sending to Free.FR MXs.
smtp;451 too many errors detected from your IP (xxxx), please visit http://postmaster.free.fr/

Not sure what to do to diagnose this. Has anyone solved this issue?

Should i maybe be doing a pmta trace for connections to the free.fr MX to see if there is more info in the handshake

My current config looks like this:

Code: [Select]

domain-macro free aliceadsl.fr, free.fr, online.fr, freesbee.fr, infonie.fr, libertysurf.fr, worldonline.fr, nomade.fr, chez.com, alicepro.fr

<domain $free>
  queue-to free.queue
</domain>

<domain free.queue>
  route free.fr
    max-msg-rate 10/m
    max-smtp-out 1
    max-connect-rate 1/m
    max-errors-per-connection 1
    max-msg-per-connection 5
    backoff-max-msg-rate 2/m
    backoff-max-smtp-out 1
    bounce-after 4d
</domain>

[ReyM]

yes - turn on full logging for the domain and see what it says... either there is a communication error (encoding / ssl / etc.) or you're black listed on them.

[twtr]

ok great thanks!
just found out it's because of invalid email addresses.
created a new forum post