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Exchange with remote SMTP

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We are changing ISP. The new ISP will block most ports. We use Exchange for corporate e-mail. They will provide an account that will hold all e-mail for our domain. Can I pickup the inbound e-mail automatically? Can I automatically send e-mail through the ISP account? They will host the website and DNS for our domain. Thanks in advance

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by steved

Do you mean that they're providing one POP3 account for all your email? Or is it a mail server that will hold and relay the mail for your domain?

It seems to me that a relay is the better way to go. Let me describe how my installation functions. It may be your preferred solution too, if your ISP will support it.

Our domain host provides a mail relay service. Mail addressed to our domain is directed to their server, which in turn relays it to our Exchange Server. All that's needed is for port 25 on our server to be accessible to them. Our server doesn't have to pick it up. It's sent from theirs to ours.

For outgoing Internet mail, we configure Exchange's Internet Connection to send to an IP address that our domain host provides. Itpoints to a mail server that allows our server to make a connection. Then their server sends it out.

This piece (outgoing) should not be a problem for any ISP. They just have to configure their SMTP server to accept a relay connection from your server. It's the incoming part that sounds a bit inadequate. Perhaps your ISP could set it up the way that ours has.

I hope this helps. Good luck.

Steve Diamond

by frobo

Hi SalM,

their are many way?s to connect a Exchange Server to the Internet, but as an Consultant i would offer U the most eviciene and most reliabe and cost inexpencive Way.

Each ISP has an Mailbuffer for an hosted E-Mail Domain (normally !),which is nothing other than a pop3 Mailbox. Depending on the services your ISP offers U, an ISP could push new Mail in cyles of 5 to 15 minutes to your Exchange Server. If you have an dialup connection with small ascent (whatever) Router, the ISP could conntact the router so the Router opens the connection to the Internet, and the ISP push the new Mail to your Exchange, however.

This prectice is best, cause you can secure your Exchange only to accecpt incoming SMTP connection from that Host, and you cand send all your Internet Mail to an specific Host.
This Procedure minimize the connection time to an minimum, your Exchange Server must not do : a DNS name resolution ...... and all the things needed to deliver your mail.

Your Email domain is everytime rechable, normaly the ISP host your Mail minimum of 3 days in case your Exchange Server is down for whatever.

Another possible solution for geting Email in your exchange is an pop3 Connector for your Exchange Server. MS hasone for free, but only for the SBS (Small Business Server). Another pop3 Connector is Internet MailBridge from Virtual Motions.

regards

Frobo

PS:If you have further Questions contact me at Adoenmez@hotmai.com.

by salm

They offered POP3. The ISP is a cable broadband provider and they don't want people using up bandwidth without paying them monthly so they limit the valid ports at the cable modem onsite.

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