Postini issue

Does anyone else use postini? We are having a strange problem with users who don't exist. For example we have a hosted exchange at Domain A. All of our external mail is filtered through Postini then pushed to Domain A. The problem is that if the user doesn't exist in Postini it should bounceback saying the user doesn't exist...however it doesn't it still pushes the email to the Domain A exchange.....has anyone heard of this before?

Find more posts tagged with

SAVE $250 on Your Boot Camp — Use Code "EXAM26"

Exclusively for TechExams members for Infosec Boot Camps starting before April 30, 2026

View Boot Camps

Comments

vCole

You have to setup in Postini to send all non-legit users to the "blackhole" that will fix your issue.

NightShade03

FadeToBright wrote: »

You have to setup in Postini to send all non-legit users to the "blackhole" that will fix your issue.

I just checked and its already set that way....[scary huh]

scmeeven

NightShade03 wrote: »

The problem is that if the user doesn't exist in Postini it should bounceback saying the user doesn't exist...however it doesn't it still pushes the email to the Domain A exchange.....has anyone heard of this before?

Try setting the 'Non-account bouncing' option to 'On' in the configuration. This will bounce back messages for any users not added to the users list for the domain.