Forum: Setting up/running an email service
20 Jan 2008, 06:30 AM
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Replies: 22
Views: 6,824
Responsibility for Stopping Abuse
There is an interesting discussion on the [spf-discuss] forum relating to who is actually responsible for sending the spam when there are two actors involved - the Transmitter (as identified in the...
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Forum: Setting up/running an email service
17 Jan 2008, 03:02 AM
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Replies: 22
Views: 6,824
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Forum: Setting up/running an email service
3 Jan 2008, 05:05 AM
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Replies: 19
Views: 8,016
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Forum: Setting up/running an email service
30 Dec 2007, 03:51 PM
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Replies: 19
Views: 8,016
Please see http://open-mail.org/WhatsNew for...
Please see http://open-mail.org/WhatsNew for major updates, or send me a private message if you would like more detail on my mailing list.
Our Registry of Internet Transmitters (TM) and the Border...
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Forum: Setting up/running an email service
28 Dec 2007, 02:58 AM
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Replies: 22
Views: 6,824
Stopping Abuse of Free Email Services
lavabit: We've taken the usual steps of limiting outbound messages, limiting the number of accounts that can be registered per IP subnet, and requiring a CAPTCHA, but nothing seems to be...
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Forum: Google Gmail Forum
27 Dec 2007, 02:57 AM
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Replies: 17
Views: 4,590
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Forum: Google Gmail Forum
27 Dec 2007, 02:26 AM
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Replies: 17
Views: 4,590
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Forum: Google Gmail Forum
25 Dec 2007, 01:45 PM
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Replies: 17
Views: 4,590
Looks its happening again!...
Looks its happening again! http://groups.google.com/group/Gmail-ABCs/browse_frm/thread/a8d917d81039592f/dc56321e945098aa#dc56321e945098aa
My guess is they are experimenting with some kind of...
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Forum: Email Comments, Questions and Miscellaneous
7 Dec 2007, 07:43 PM
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Replies: 18
Views: 3,773
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Forum: Email Comments, Questions and Miscellaneous
7 Dec 2007, 05:51 AM
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Replies: 18
Views: 3,773
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Forum: Email Comments, Questions and Miscellaneous
6 Dec 2007, 03:41 AM
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Replies: 23
Views: 3,557
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Forum: Email Comments, Questions and Miscellaneous
5 Dec 2007, 12:28 AM
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Replies: 23
Views: 3,557
We need more than just staying civil to have a...
We need more than just staying civil to have a productive discussion on this topic. We need to listen to the other side and dig out the underlying assumptions. Often these assumptions are unstated,...
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Forum: Email Comments, Questions and Miscellaneous
4 Dec 2007, 08:02 PM
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Replies: 23
Views: 3,557
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Forum: Email Comments, Questions and Miscellaneous
3 Dec 2007, 03:12 PM
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Replies: 23
Views: 3,557
We need to distinguish between sender's...
We need to distinguish between sender's forwarders and recipient's forwarders. A sender's forwarder has an established relationship with the sender. There is no need for a probe, it just sends the...
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Forum: Email Comments, Questions and Miscellaneous
1 Dec 2007, 11:21 PM
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Replies: 23
Views: 3,557
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Forum: Email Comments, Questions and Miscellaneous
30 Nov 2007, 05:57 PM
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Replies: 23
Views: 3,557
I don't have any numbers, but there is a small...
I don't have any numbers, but there is a small chance that an SPF record could include too many IP addresses, and thereby allow a spammer with an "authorized" IP address to forge any return address...
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Forum: Email Comments, Questions and Miscellaneous
30 Nov 2007, 12:47 AM
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Replies: 23
Views: 3,557
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Forum: Email Comments, Questions and Miscellaneous
29 Nov 2007, 10:57 AM
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Replies: 23
Views: 3,557
Even with an SPF Pass, there is still a small...
Even with an SPF Pass, there is still a small chance that the return address is forged. The SMTP Reject avoids even this small risk.
I have heard that with some senders, the SMTP reject message may...
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Forum: Email Comments, Questions and Miscellaneous
29 Nov 2007, 12:11 AM
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Replies: 23
Views: 3,557
> The rejection message would have to be in...
> The rejection message would have to be in response to end of data if the message is to be kept and quarantined.
Correct. Challenges would be sent only for messages that pass our checks of IP...
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Forum: Email Comments, Questions and Miscellaneous
28 Nov 2007, 12:39 AM
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Replies: 23
Views: 3,557
C/R - can we do it right
Please let's avoid all religion and keep this thread short. Let's focus on what can be done to get the benefits of a Challenge/Response system, while avoiding the "bounce spam" problem. I apologize...
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Forum: Email Comments, Questions and Miscellaneous
27 Nov 2007, 11:54 PM
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Replies: 14
Views: 2,135
I thought we were talking only about *outgoing*...
I thought we were talking only about *outgoing* mail. I don't use Yahoo for incoming, because I have a much better system on my own server. I like having a spam-free inbox without paying the price...
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Forum: Email Comments, Questions and Miscellaneous
26 Nov 2007, 11:53 PM
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Replies: 14
Views: 2,135
I would not use Gmail for my outgoing mail. ...
I would not use Gmail for my outgoing mail. google.com is one of the few large ESPs that allows spam to be sent from their authorized transmitters. I have sent them spam reports, and get nothing...
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Forum: Email Comments, Questions and Miscellaneous
26 Nov 2007, 12:03 AM
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Replies: 14
Views: 2,135
I have no data that Yahoo is more reliable for...
I have no data that Yahoo is more reliable for outgoing mail, just a guess based on my understanding of how receivers implement reputation checking. Mail from smaller services tends to get lost or...
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Forum: Email Comments, Questions and Miscellaneous
25 Nov 2007, 05:36 PM
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Replies: 14
Views: 2,135
After trying to send mail from my own little...
After trying to send mail from my own little transmitter, and running into similar problems with lost mail, I found there are only two solutions. Either make a serious effort to become a reputable...
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Forum: Email Comments, Questions and Miscellaneous
25 Nov 2007, 12:10 AM
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Replies: 45
Views: 9,352
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