I hope someone here who has used Postini can suggest a way to resolve this.
One of my clients just switched from webroot's EMail SaaS (antispam
service) to Postini, and they do use postini (as they did webroot) for
outbound relaying/filtering.
This change has broken mail forwarding via aliases for the accounts that
I had set up to forward all inbound mail to an outside account. Aliases
pointing to internal accounts continue to work as expected.
It also broke the same thing with my sender_bcc maps when the sender_bcc
target is an external address...
I get the following error in the logs (<u...@example.com> is a valid
user on our system):
myhost : Mon Mar 12, 06:24:23 : ~
# less /var/log/messages | grep C0F52760CFF
Mar 12 02:48:29 myhost postfix-25/smtpd[25932]: C0F52760CFF:
client=exprod6mx207.postini.com[64.18.1.107]
Mar 12 02:48:30 myhost postfix/cleanup[25937]: C0F52760CFF:
message-id=<1316900478.1331534907972.JavaMail.SYSTEM@sj-w-06cmp78>
Mar 12 02:48:30 myhost postfix/qmgr[20957]: C0F52760CFF:
from=<n...@external-example.com>, size=13599, nrcpt=2 (queue active)
Mar 12 02:48:30 myhost postfix/virtual[25940]: C0F52760CFF:
to=<u...@internal-example.com>, relay=virtual, delay=0.67,
delays=0.65/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to maildir)
Mar 12 02:48:30 myhost postfix/smtp[25939]: C0F52760CFF:
to=<xyz.archived+user...@gmail.com>,
orig_to=<u...@internal-example.com>,
relay=outbounds6.obsmtp.com[64.18.5.12]:25, delay=1,
delays=0.65/0.01/0.27/0.07, dsn=5.0.0, status=bounced (host
outbounds6.obsmtp.com[64.18.5.12] said: 518 Sender not authorized from
this ip - psmtp (in reply to MAIL FROM command))
Mar 12 02:48:30 myhost postfix/bounce[25942]: C0F52760CFF: sender
non-delivery notification: C12549589EE
Mar 12 02:48:30 myhost postfix/qmgr[20957]: C0F52760CFF: removed
myhost : Mon Mar 12, 06:25:09 : ~
#
I think that somehow postini is *interpreting* the aliased *recipient*
address as the *sender*, because this user has no trouble sending
messages directly/normally, and more importantly, because of this text
in the actual bounce that the sender got:
<xyz.archived+user...@gmail.com> (expanded from
<u...@internal-example.com>): host outbounds6.obsmtp.com[64.18.5.12]
said: 518 Sender not authorized from this ip - psmtp (in reply to MAIL
FROM command)
Note the 'expanded from...'
Has anyone ever dealt with postini using them for outbound
relay/filtering and aliases pointing to external addresses, or otherwise
have any insights how I might be able to fix this on my end? Or is my
only hope to do something on postini's side?
Thanks in advance...
--
Best regards,
Charles
