Limitar numero de destinatarios por mensaje

Hi Michael,

There isn't a limit per-sey however there are restrictions with postfix. This is not configurable in the UI you will need to modify your pf config.

just have a quick a search for : on postfix.org

default_destination_recipient_limit (default: 50)

The default maximal number of recipients per message delivery. This is the default limit for delivery via the lmtp(8), pipe(8), smtp(8) and virtual(8) delivery agents.

Setting this parameter to a value of 1 affects email deliveries as follows:

It changes the meaning of the corresponding per-destination concurrency limit, from concurrency of deliveries to the same domain into concurrency of deliveries to the same recipient. Different recipients are delivered in parallel, subject to the process limits specified in master.cf.

It changes the meaning of the corresponding per-destination rate delay, from the delay between deliveries to the same domain into the delay between deliveries to the same recipient. Again, different recipients are delivered in parallel, subject to the process limits specified in master.cf.

It changes the meaning of other corresponding per-destination settings in a similar manner, from settings for delivery to the same domain into settings for delivery to the same recipient.

Use transport_destination_recipient_limit to specify a transport-specific override, where transport is the master.cf name of the message delivery transport.


The other one of note would be:

transport_destination_recipient_limit (default: $default_destination_recipient_limit)

A transport-specific override for the default_destination_recipient_limit parameter value, where transport is the master.cf name of the message delivery transport.

Note: some transport_destination_recipient_limit parameters will not show up in "postconf" command output before Postfix version 2.9. This limitation applies to many parameters whose name is a combination of a master.cf service name and a built-in suffix (in this case: "_destination_recipient_limit").


Ideally though you can probably configure this limit in exchange to.. Postfix will split up the message as per those guidelines.. I would not recommend setting the limit to high as that would deliver a single email to the milter and this may cause some performance issues if say pmx had to message split on a message with 10000 recipients. The default is 50, so if a message arrives with 200 recipients it will split off 4 messages for processing but will look like 1 message to the users.

in your main.cf you could modify

default_destination_recipient_limit = 50

Hello Michael, 

It's also possible to use a similar rules in your PureMessage For Unix

# attr NAME=Security Rules - Reject email if the number of recipients is over 20
if pmx_number_of_recipients :over 20 {
pmx_mark1 "Internal_RCPTO_Limit";
pmx_mark "pmx_reason" "RCPT To Limit";
reject :rcode 550 "Too much recipients";
stop;
}