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Same problem here. NDRs just occasionally. No rhyme or reason. And mine can send to the same address at a different time, just not when the problem happens.

I have had the same issue for about a month. Really strange one. Very sporadic. - about 5 people of 300 on 1 of 2 ex servers - all 5 are in 1 building but there are about 100 other people in the same building w/ no problems. - most are able to send to the same address at a different time...

All I have read and heard also points toward not running defrag unless app log states it is needed. White space is generally thought to be used faster than free space by exchange since exchange already knows it is there. Also, using the defrag utility, you can specify where the temp defrag db...

Make sure you typed the reg files EXACTLY like they show. I had an extra space in the Per-Site entry and it did not work. Also use the admin -r and get the Dir name of the mailbox or CR. Check out MS article Q239427 also.

I have the same thing, blank originator in outbound queue and I would like to stop them also. I have relaying blocked but these are emails that come in for a non-existant user at your domain. The user name is invalid but the domain is valid. These are probably NDRs trying to get back to a...

Along with that I would not have any users mailboxes with no limits. If they get a heavy spam or repeat delivery of an email it could eat up your free space quick. I would set up that user with a really big mailbox, but never just unlimited.

I had the same situation archiving/ moving older emails in the active mailbox with attachments. I enabled background scanning of attachments on NAV for Exchange and the problem went away.

If you just want to see how many emails are traveling in and out(via internet)you can use SMTP logging and open the log in excel. Then you can sort by sender, or whatever you want. Just select minimal and it will give you a count and some other info. Copying emails to view them would require...

Q239427 - I am looking at this as an option also.

I have not used journaling, but I am looking to. Everythinig I have read and heard, journaling taked HUGE amounts of space. All emails are copied to where you will hold them. Your 27gig priv does not keep the many deleted items that are removed. The journaling keeps these. Spam, junk, personal...

I had the same error message recently, although mine was with archiving. It turned out NAV for Exchange server was locking messages with attachments so you couldn't move them. I enabled "Scan attachments in background" on NAV and the next day all was OK. After updating virus...

True. Priv will not shrink until you do an offline defrag. If you look for a MSPriv event #1221 in apps event log it will tell you how much free space you have inside the priv.

I am having a similar situation happen. I am replacing the first server in the site. I have followed the steps in the KB article on it. I have moved all mailboxes, pub folders and connectors to the new server. When I stop all services on the old server mail still routes properly internally and...

If it were me, depending on the connection between the 2, I would use the same site and add the server to that site. Several functions, like moving mailboxes, can be done more easily in the same exchange site. If you use 2 sites and need to move a mailbox you need to export to a PST, delete the...

Sorry for my poor typing. I meant . . . in the past, not pst.

Try running optimizer but don't change any locations or anything. I don't know what it is but it has fixed a couple of my wierd problems in the pst.

Q155216

Using the IMS Routing tab you can set these. It is in Ex Srv 5.5 SP1. You can set IMS to not accept relaying. Look at MS Knowledge Base Q199656.