I’ve sent a mail to 440 persons all over the world. I received no mail delivery error messages, but some of them never received the mail. I noticed that colleagues very close (same building) did not receive it, others in Canada received it…
Any idea what could have happened?
Could an administrator track, to whom the mail was sent and to whom not?
Thank you for your help in advance,
Leini
Subject: Big distribution list: only partly ‘arrived’, but no Mail delivery errors…
Hi Leini
It depnds how the mail was sent. For example, if you put all the recipients in the BCC field, then that could be one reason - most ISP’s systems are set to automatically block Internet mail sent to more than about 10-14 recipients in the BCC field. This is beacuse that is a well known feature of most spam mail.
Note that it may not be your ISP but the recipient’s ISP or even their mail servers set up to bloack mail of this sort.
Also increasingly most servers including Domino (since R5) have the facility to automatically check against ‘block lists’ also in many cases “score” the email for spam. When an email has features (such as a large number of entries in the BCC or even the To fields), its spam score increases. Then the server automatically junks the mail if it scores more than a certain amount determined by the server administrators or block lists.
You may need software that sends the mail out individually or in small gorups, by effectively performaing a mail merge between your content and all the recipients - a bit like doing a mail merge in a word processor.
Good luck
Bizhan