LuKreme wrote:

>On 15-Jan-2010, at 09:24, Goodman, William wrote:
>> I had a user send an email to one of our lists (approx. 700 email
>> address), he states that some users received them about (450) and other did 
>> not. Is there a email address limitation or member limitation? 
>
>
>Not in Mailman.
>
>There are many reasons that a mail may not be received by some members of a 
>list.
>
>1) Spam filters on their machines that trap the mail as spam
>2) limitations on your sending server on how many emails you can send to how 
>many people in what amount of time
>3) Your server is on an RBL
>4) THEIR server is on an RBL
>5) They DID receive the mail, they just can't find it
>6) DNS issues (yours or theirs)
>
>There are probably other things.


In addition to the above, check Mailman's smtp-failure log if you can.

The 450 number (and exactly how can he know that?) suggests that
possibly list delivery was chunked with the default SMTP_MAX_RCPTS =
500 and only one chunk was accepted by the MTA.

-- 
Mark Sapiro <m...@msapiro.net>        The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan

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