We use a 3rd party program that only accepts 7 bit mime emails. It has been dropping any 8 bit emails coming to us with no warning. We've had to scour months of logs to find the ones that went missing and finally figured out that this is the issue. So my problem is this... if I change my mail gateways to only accept 7 bit emails what can I expect? I'm worried it's going to cause more problems than it solves. Thanks in advance.

The way it's supposed to work is if you disable 8-bit MIME, your server won't advertise it in the ESMTP negotiation, so sending servers aren't supposed to try to use it when they send you mail. Messages with attachments will require approximately 15% more bandwidth because of less efficient encoding.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Tom Oriel" wrote in message news:c7c9ccfd-9ff2-4b79-a8ec-9b63578ff5ec...We use a 3rd party program that only accepts 7 bit mime emails. It has been dropping any 8 bit emails coming to us with no warning. We've had to scour months of logs to find the ones that went missing and finally figured out that this is the issue.So my problem is this... if I change my mail gateways to only accept 7 bit emails what can I expect? I'm worried it's going to cause more problems than it solves.Thanks in advance. Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

Thanks Ed Would this generate a lot of bounces from my server saying it won't accept 8bit emails?

No, if it works right, when a sending server does the EHLO, your server will NOT advertise 8BITMIME and so the sending server won't even try to use it. So it SHOULD generate no bounces at all.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Tom Oriel" wrote in message news:5bfc86e8-c8c8-4b5b-8c73-cf37a731a42c...Thanks EdWould this generate a lot of bounces from my server saying it won't accept 8bit emails? Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

To turn off the 8-Bit MIME for exchange 2007, the cmdlet is: New-SendConnector -Name Test -AddressSpaces testdomain.com -ForceHELO $true For earlier exchange versions, please refer to KB 257569James Luo TechNet Subscriber Support (http://technet.microsoft.com/en-us/subscriptions/ms788697.aspx) If you have any feedback on our support, please contact tngfb@microsoft.com

On Tue, 23 Mar 2010 09:00:17 +0000, James-Luo wrote:>>>To turn off the 8-Bit MIME for exchange 2007, the cmdlet is: >>New-SendConnector -Name Test -AddressSpaces testdomain.com -ForceHELO $trueThat works for mail you're sending. It doesn't do anything for mailsent by another system to yours.To stop advertising the 8bitmime keyword you have to modify theReceive Connector(s):Set-ReceiveConnector -Id <recvconn-name> -EightBitMimeEnabled:$false---Rich MatheisenMCSE+I, Exchange MVP--- Rich Matheisen MCSE+I, Exchange MVP