Re: Comcast 421 throttling multiple recipients

2020-09-28 Thread Bob Proulx
Viktor Dukhovni wrote: > Bob Proulx wrote: > > > > ... http://postmaster.comcast.net/smtp-error-codes.php#RL01 (in > > > > reply to MAIL FROM command)) > > > > > > Look carefully at the log entry. The "421" is send in response to "MAIL > > > FROM", not "RCPT TO". So the recipient limit does

Re: Comcast 421 throttling multiple recipients

2020-09-24 Thread Viktor Dukhovni
On Thu, Sep 24, 2020 at 02:06:05PM -0600, Bob Proulx wrote: > > > ... http://postmaster.comcast.net/smtp-error-codes.php#RL01 (in reply > > > to MAIL FROM command)) > > > > Look carefully at the log entry. The "421" is send in response to "MAIL > > FROM", not "RCPT TO". So the recipient li

RE: Comcast 421 throttling multiple recipients

2020-09-24 Thread Scott Techlist
>But then how do we configure Postfix to do this automatically so that >we can gain enough reputation to send more than one recipient at a >time? Because Comcast is not rejecting all mail. Comcast is only >rejecting mail with multiple recipients. Comcast is accepting mail >with single recipients

Re: Comcast 421 throttling multiple recipients

2020-09-24 Thread Bob Proulx
Viktor Dukhovni wrote: > Bob Proulx wrote: > > ... http://postmaster.comcast.net/smtp-error-codes.php#RL01 (in reply > > to MAIL FROM command)) > > Look carefully at the log entry. The "421" is send in response to "MAIL > FROM", not "RCPT TO". So the recipient limit does not look entirely >

Re: Comcast 421 throttling multiple recipients

2020-09-24 Thread Viktor Dukhovni
On Thu, Sep 24, 2020 at 12:59:44AM -0600, Bob Proulx wrote: > Question about a different system. Pretty much every question of mine > is related to a different oddball case. Here I am helping a friend > out and they encountered this problem. I'll change the 3rd party > addresses so as not to an

Comcast 421 throttling multiple recipients

2020-09-24 Thread Bob Proulx
Question about a different system. Pretty much every question of mine is related to a different oddball case. Here I am helping a friend out and they encountered this problem. I'll change the 3rd party addresses so as not to annoy them but the data is otherwise verbatim. Sep 23 14:38:23 yuk