[Mailman-Users] MTA says too many recipients

Mark Sapiro mark at msapiro.net
Wed Mar 13 12:17:50 EDT 2019

On 3/12/19 8:47 AM, Ajay Guleria wrote:
>> We are using mailman 2.x. We are relaying all mails though a postfix MTA server where smtpd_recipeint_limit  is 36. On mailman server in logs we are getting  452: 4.5.3 Error: too many recipients. Our mailing list has 960 members and Ceiling on acceptable number of recipients for a posting value is 0. How to resolve this issue?

Set SMTP_MAX_RCPTS to a number less than 36 in Mailman/mm_cfg.py, or
perhaps better set


Read about these settings in Mailman/Defaults.py

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

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