Re: resources for 'only virtual domains'

2 msg	hash table not matching subdomains
18 msg	Non-delivery problem
3 msg	tracing mail
5 msg	different SMTP ip sender in one instance of pos...
18 msg	Three Postfix Errors
10 msg	Conditional relay to a barracuda spam filter
2 msg	Postfix as honeypot
3 msg	postqueue -p
17 msg	Patch to pas all the recipients of a mail to th...
5 msg	Postfix DBD Help
4 msg	Send and receive mail on different ports?
3 msg	postfix behind a router
1 msg	postfix to access mail from external host.
4 msg	Three installation/configuration issues
9 msg	Reject SMTP connection if two RBL match
3 msg	Holding Large Emails
9 msg	Monitor Relaying
7 msg	Sender address rejected when sending messages t...
1 msg	Problem using Postfix with LDAP using STARTTLS

resources for 'only virtual domains'
\ Stefan Palme (15 Nov 2007)
. \ (Wietse Venema) (15 Nov 2007)
. . \ Stefan Palme (15 Nov 2007)
. . . \ (Wietse Venema) (15 Nov 2007)
. . . . \ Stefan Palme (16 Nov 2007)
. . \ Jorey Bump (15 Nov 2007)
. . . \ Victor Duchovni (15 Nov 2007)

Subject:	Re: resources for 'only virtual domains'
Group:	Postfix-users
From:	Stefan Palme
Date:	16 Nov 2007

> Using local_destination_recipient_limit > 1 will actually make
> delivery slower, because recipients are delivered one after the
> other. With local_destination_recipient_limit=1, recipients are
> delivered in parallel.
>
> > the argument for not setting it to higher values than the default, why
> > are the other {recipient,concurrency}_limits that high? SMTP, LMTP
> > etc. also only can use the available CPUs and number of disks, which
> > means, that I should set default_destination_*_limits also to 2 ?
>
> There is a reason why local recipient and concurrency limits are
> different than smtp limits.
>
> Mailboxes are not multi-recipient. Delivering multiple recipients
> in one local(8) request is bad. Delivering each recipient separately
> in a parallel local(8) request is good.
>
> SMTP is a multi-recipient protocol. Delivering multiple recipients
> in one smtp(8) request is good. Delivering each recipient separately
> in a parallel smtp(8) request is bad.

Thanks for explanation, will keep settings at their default values
for the moment.

Regards
-stefan-