Hi ketan, The best way to support all ur roaming users mails for ur mail server without the authentication is to create the custom reciepients by the name of those users e.g roamingusers@xxxxxxxxxxxxx <mailto:roamingusers@xxxxxxxxxxxxxxxxxxxxxxxxxx> . Then under the properties of that custom reciepient u can assign the proxy address of roaminguser@xxxxxxxxxxxx <mailto:roaminguser@xxxxxxxxxxxx> . For custom recipients u dont need to create the mailbox and user account on LAN. SO u dont require any authentication setting for custom recipients. I guess this may help u. Regards. Sudhir Kaushal Network Engineer ( Hosted Team ) eGain Communications Pvt. Ltd. ( Nasdaq - EGAN ) Hello - (+91 20) 4222812, (+91 20) 4228607, Ext - 132. -----Original Message----- From: Ketan Pandya [mailto:ketanp@xxxxxxxxxx] Sent: Tuesday, August 13, 2002 5:51 PM To: [ExchangeList] Subject: [exchangelist] RE: relay restrictions-- help help!! http://www.MSExchange.org/ Hi Sudhir, Thanks for the reply. My requirement is to have the anti spam mechanism on Exchange 5.5 server which is acting as an outgoing SMTP server for all roaming users. Present scenario is, it requires authentication to relay mails using the server. I'd require it to be used without the authentication settings and at the same time I'd require only the users belong to mydomain.com should be able to send mails using the SMTP server. I could find out the security based on the IP address on the IMC of Exchange 5.5 server. Can the security be configured based on the domain name???? Regards, ~~~~~~~~~~~~~~~~~~~~~~~~ Ketan Pandya 91 22 695 22 22 Extn 1672 networksupport@xxxxxxxxxx ~~~~~~~~~~~~~~~~~~~~~~~~ -----Original Message----- From: Sudhir Kaushal [mailto:skaushal@xxxxxxxxx] Sent: Tuesday, August 13, 2002 5:39 PM To: [ExchangeList] Subject: [exchangelist] RE: relay restrictions-- help help!! http://www.MSExchange.org/ HI ketan.. can u please elaborate this more. I guess u r talking about configuring the custom recipients and forwarding the mails to the proxy SMTP address as per ur client address. Regards. Sudhir Kaushal Network Engineer ( Hosted Team ) eGain Communications Pvt. Ltd. ( Nasdaq - EGAN ) Hello - (+91 20) 4222812, (+91 20) 4228607, Ext - 132. -----Original Message----- From: Ketan Pandya [mailto:ketanp@xxxxxxxxxx] Sent: Tuesday, August 13, 2002 5:19 PM To: [ExchangeList] Subject: [exchangelist] relay restrictions-- help help!! http://www.MSExchange.org/ Hi, I'm using my Exchange 5.5 server as an SMTP server for roaming users at my organization. Roaming users uses outlook pop client to retrieve mails from Exchange server and uses Exchange 5.5 server configured with IMC to send mails to users across organization as well as to the recipients on Internet. Can anybody tell me how can I configure my Exchange 5.5 server or IMC on the server so that I can have this server to relay mails having originator information with user@xxxxxxxxxxxx <mailto:user@xxxxxxxxxxxx> only and no other domains can relay mails using this server??? I'm also using Mailsweeper for SMTP 4.2_5 and McAfee Webshield for SMTP 4.5MR1a behind that. Can I use these boxes to achieve what is required???? Please help. Thanks in advance. Regards, ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ketan Pandya Technology Infrastructure Services Mastek Ltd Tele: 91 22 695 22 22 Extn 1672 <mailto:ketanp@xxxxxxxxxx> ketanp@xxxxxxxxxx ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ MASTEK Investing in relationships In the US, we're called MAJESCO ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Opinions expressed in this e-mail are those of the individual and not that of Mastek Limited, unless specifically indicated to that effect. 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