sendmail compared to smtp sending

2 msg	postmap header_checks error
10 msg	mailbox_command (dovecot lda) stopped working, ...
5 msg	mynetworks via LDAP lookup
7 msg	Local recipient table in LDAP problem
2 msg	proxy_read_maps
1 msg	smtpd_restriction_class and it's lookup
8 msg	Message Rejected
12 msg	Customize to filter attachment ?
2 msg	Relay question
14 msg	unnecessary routing?
4 msg	do not use 'reject_maps_rbl'?
9 msg	Fwd: Postfix in OpenVZ.
2 msg	bypass body_checks for local mail?
4 msg	catchall with relay_recipient_maps
4 msg	'Name server failure' is output
3 msg	smtp_sasl_password_maps lookups
16 msg	Postfix Queues on a Ram Disk

sendmail compared to smtp sending
\ Chris (23 Jan 2008)
. \ (Wietse Venema) (23 Jan 2008)
. . \ Chris (23 Jan 2008)
. . . \ Victor Duchovni (23 Jan 2008)
. . . . \ Chris (23 Jan 2008)
. . . . . \ Victor Duchovni (23 Jan 2008)
. . . . \ (Wietse Venema) (23 Jan 2008)
. . . . . \ Chris (23 Jan 2008)
. . . . . . \ Victor Duchovni (23 Jan 2008)
. . . . . . . \ Chris (23 Jan 2008)
. . . \ (Wietse Venema) (23 Jan 2008)
. . \ Michael Tokarev (23 Jan 2008)
. . . \ (Wietse Venema) (23 Jan 2008)
. . . \ Victor Duchovni (23 Jan 2008)
. . . \ Chris (23 Jan 2008)

3 msg	Postfix does not recognize remote emails
2 msg	How to disable SSLv2 on smtpd opportunistic TLS?

Subject:	sendmail compared to smtp sending
Group:	Postfix-users
From:	Chris
Date:	23 Jan 2008

Hi all,

I've been trying to look at speeding up my postfix install and notice
that on the website it mentions using smtp sending instead of the
sendmail binary.

What's the reasoning behind that?

I would have thought that sending through the smtp connection would be
slower because of all of the tcp overhead and all the extra checks that
postfix does.

Thanks for any info.
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