I had the same problem as you are having. There is only ONE way to resolve this and it's simple:
Set "No mail relay" on your server and restart SMTP service. All of your users/accounts must then authenticate when they send mail. They set this in Outlook Express under the "Servers" tab for that particular mail account. Set "My mail server requires authentication" click on the "settings" tab and make sure that the "Use same setting as my incoming mail server" is checked. They will be able to send via other ISP's - I assume you mean for dialling in, this doesn't matter. If they use "other" ISP's for picking up and sending mail then they will have separate mail accounts in their Outlook Express settings so that doesn't matter either. What IS important is that YOUR mail server is protected and this is the ONLY way to do it as my "list colleagues" having been trying to tell you. I went through the whole of this process and sent out Emails to all of my clients telling them how to do this and which date it would be active from. I received 3 query calls out of 500 clients, so they DID manage to do it. All you need do is to explain WHY you are doing it. Allen Thompson Technical Director Aquatania (UK) Ltd. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Magdy Ibrahim > Sent: 24 February 2003 09:42 > To: [EMAIL PROTECTED] > Subject: Re: OSRELAY:Re: [IMail Forum] SMTP Problem (1)! > > > What if my users tried to access their accounts from an other ISP with > different IPs using outlook Express?? > > Magdy > > ----- Original Message ----- > From: "Len Conrad" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, February 24, 2003 11:23 AM > Subject: Re: OSRELAY:Re: [IMail Forum] SMTP Problem (1)! > > > > > > >How to force them to authenticate??? > > >I mean which option under SMTP Security.... > > > > 1. "no mail relay" (but now your web servers and other apps that can't > AUTH > > can't relay through Imail ) or > > > > 2. Stay with "relay for addresses" but reduce the ip's to include only > > those boxes that relay mail through Imail and can't AUTH. > > > > Len > > > > > > > > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html > > List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ > To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/ _____________________________________________________________________ This message has been checked for all known viruses by the MessageLabs Virus Scanning Service supplied by Aquatania Ltd. For further information visit www.aquatania.co.uk http://www.messagelabs.com/stats.asp To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
