Mail send to postfix maildrop for sending out but takes forever to enter queue

[xsoul]

So I just updated from php 4.3.11 to 4.4.7 because of Apple’s security patch to update OS X Server to 10.3.9 and whenever my php script that sends out like to a list of 2-6 emails addresses at a time, the first one will be sent, but the remaining emails will kinda stay stuck in the maildrop. mailq command will show the id, and from, but the time will displayed as ??. Mail log will report the receiving and sending of the first email, and nothing else. Looking in the /var/spool/postfix, I can see all the unsent or unqueue mail in the maildrop folder and it stays there until I send another batch of emails out, in which, all those in the previous batch in the maildrop and the first email of the new batch will be sent, but any ones after the first are stuck again.

Is this a problem with the postfix settings or the how the php mail function now operates? Something happened after I did the update. I had no problem sending mail through the mail() function in a loop before and none of these loops were very large, almost never more than 10 mails sent. Thanks.

postconf -n provides:
always_bcc =
command_directory = /usr/sbin
config_directory = /etc/postfix
daemon_directory = /usr/libexec/postfix
debug_peer_level = 2
enable_server_options = yes
inet_interfaces = all
luser_relay =
mail_owner = postfix
mailbox_transport = cyrus
mailq_path = /usr/bin/mailq
manpage_directory = /usr/share/man
maps_rbl_domains =
maximal_queue_lifetime = 1d
message_size_limit = 10240000
mydestination = $myhostname,localhost.$mydomain
mydomain_fallback = localhost
myhostname = MY.DOMAIN.COM
mynetworks = 127.0.0.1/32,xx.xx.xx.xx/32
mynetworks_style = host
newaliases_path = /usr/bin/newaliases
queue_directory = /private/var/spool/postfix
readme_directory = /usr/share/doc/postfix
relayhost =
sample_directory = /usr/share/doc/postfix/examples
sendmail_path = /usr/sbin/sendmail
setgid_group = postdrop
smtpd_client_restrictions =
smtpd_enforce_tls = no
smtpd_pw_server_security_options = none
smtpd_recipient_restrictions = permit_mynetworks,reject_unauth_destination,permit
smtpd_sasl_auth_enable = no
smtpd_tls_loglevel = 0
smtpd_use_pw_server = no
smtpd_use_tls = no
unknown_local_recipient_reject_code = 450

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