* shawn D.Wang <[EMAIL PROTECTED]>: > Ralf, thanks for the quick response. > > Surely I will use multi recipients. > I supposed the postfix will send a separate copy to each recipient.
No, not with multi-recipient mail. > for instance：if i have two recipients, [EMAIL PROTECTED] and [EMAIL > PROTECTED], they > are in different ISP, so postfix will transfer two times, once for the > hotmail ISP, and another for the yahoo ISP. Am I right? Yes. Of course. > Or another way, optimisticly, I can only transfer one time, say, to > hotmail ISP, and the mail sever receive this mail then find there is another > recipent at yahoo ISP, so the hotmail mail sever on one hand, put the mail > to its user, and on the other hand, continue with the transfering to yahoo > ISP. But I believe the later one could never happen. Correct. You need to do your own work. > But if the two users are in the same ISP, how does the postfix transfer the > message? Once, with two recipients. > The postfix only transfer once? and the receiver ISP distribute two > copies separately two each user? Yes. > is that mean, the for a message, the copy number the postfix will > transfer does not depend on the recipient number (of course under the > max recipient number limit), Yes. > but depend on the ISP number in all the recipients? say, if I have a > message with 5 > recipients: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED], > [EMAIL PROTECTED], [EMAIL PROTECTED], will the postfix only transfer 3 > copies for the message? Yes. > That is the key point of my problem. if the answer is "yes", then I can > use multi recipients in the same message but transfer only one copy, > that would be so, so, good. > > > On 8/29/08, Ralf Hildebrandt <[EMAIL PROTECTED]> wrote: > > > > * shawn D.Wang <[EMAIL PROTECTED]>: > > > Hi guys: > > > > > > I'm fresh at postfix. Resently, we have built the postfix for our web > > > service. We would like to deliver some e-magzines to our registered > > users. > > > but the size of each magzine is over 1 M. but we have hundreds of > > thousands > > > users. As a result, the bandwidth is embarrassing. > > > > Yes. > > > > > Since most of our users use yahoo, Hotmail and some other huge ISP, so > > > if we can just send one copy to certain number of users of the same > > > ISP, the bandwidth could be saved a lot. > > > > Do you use single recipient or multi recipient mails? > > > > > just let the ISP themselves to distribute the mails to those users. Is > > > there some method to deal with this problem？or just some configuration > > > change can do？ > > > > Use multi recipient mails! > > > > -- > > Ralf Hildebrandt ([EMAIL PROTECTED]) > > [EMAIL PROTECTED] > > Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 > > http://www.arschkrebs.de I'm looking for a > > job > > Yes, and every single administrator that's configured their virus > > scanner to bounce to envelope deserves a swift kick upside the head. > > -- Ralf Hildebrandt ([EMAIL PROTECTED]) [EMAIL PROTECTED] Postfix - Einrichtung, Betrieb und Wartung Tel. +49 (0)30-450 570-155 http://www.arschkrebs.de I'm looking for a job In German "invent-a-new-word-where-a-perfectly-good-one-already-exists" is probably a word.
