On 21/09/24 11:26, Wesley via Postfix-users wrote:
dear list,
I see both postfix and dovecot can set the limit for mailbox size and
message size.
So which to set it as the better way? or both?
It depends on the delivery agent:
* For the postfix local(8) lda you would use mailbox_size_limit.
* For the postfix virtual(8) lda you would use virtual_mailbox_limit.
* For the dovecot lda or dovecot lmtp ldas you would use dovecot
settings. Also note that dovecot has much more fine-tuning (per mailbox
and quota features) available for this.
* Other delivery agents (e.g. Procmail) have their own settings for this
as well.
message_size_limit is a postfix setting which prevents any message from
being larger than the given limit. I believe this value is also shown
in the SIZE EHLO response header. This should be set to a sufficiently
high value so that no legitimate message will be larger, but it's not
recommended to set it to 0 (unlimited) as it is a protection against
certain SMTP attack vectors. If you're not sure about this just leave
it at the default unless / until you have a good reason to increase it.
Peter
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