Sending to mailing list.

Posted on 2011-05-09
Last Modified: 2012-05-11
I want to send mail to 900 + recipients. What is the best way to do this, simply send from the exchange server and remove the limit on number of recipients on the exchange server connector. This is not spam mail and all users should be expecting the newsletter. Exchange 2003. What are the pitfalls for this and best way of doing it.
Question by:Sid_F
    LVL 10

    Accepted Solution

    Depends really on whether these are external accounts or internal accounts. We have 1500 or so employess and a very restricted email list to all of them. It is used for district announcemnets and such. In which case you simply need to restrict who can send to the mailing list.

    If they are external addresses I would only imagine that the same above applies however you would need to make sure your upstream provider is ok with it. It may not be spam to you or the recipients but a lot of ISP's watch for that sort of thing and may block it on the assumption that you do not want it.

    The one time we tried it we had a lot of NDR's that were stuck because of bad addresses.

    I won't go over the possibility of a spammer gaining access to the list and using it for their purposes.
    LVL 5

    Author Comment

    Good insite thanks. They are external users
    LVL 9

    Assisted Solution

    I would 1st run this by your ISP and not just their 1st line support. Try and get a definitive answer from further up. We have had a couple of new customers who for various reasons had been hit by an NDR attack last year.
    The point here is the differance between the response from the differant ISPs. one shut customer 1 down instantly which is what I would expect until they cleaned up the NDR etc which is when they contacted ourselves, the other ISP actually called the customer up to tell them about the issue. Some ISPs are more forgiving than others. So I would speak to your ISP first and maybe for your 1st run, try sending out a smaller amount so you are not hit with a load of NDRs from incorrectly spelt addresses etc.
    Failing this have a look at some of the paid for email marketing companies out there who take the worry out of getting your exchange on a black list.

     Just some food for thought
    LVL 5

    Author Closing Comment


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