[DECtalk] Think I fixed the bouncing problem

[Jayson Smith]

Hi,

That's sort of right. Here's an example.

Let's pretend that I have a yahoo.com address. I don't, but for this 
example, let's just pretend that I do. Okay, so I send a message to the 
list, and the list does its thing, sending my message to everybody on 
the list, including myself.

The way it used to work, my address would be in the From: line of the 
message. So now, certain providers would see a message come in, and it 
would appear to be from yahoo.com, since that's my pretend Email 
address. But wait a minute, this message isn't coming from a Yahoo mail 
server. In the eyes of these providers, this could be someone trying to 
impersonate a Yahoo address, so the message is rejected.

The way it works now is that my pretend Yahoo address is stripped from 
the From: line, and the list's address is put there instead. Now, when 
Yahoo, Hotmail, Comcast, etc. see this message come through, they don't 
see a Yahoo message coming from a non-Yahoo server any more, so it goes 
through.
Jayson

On 7/22/2014 6:57 PM, Green Gables Fan via Dectalk wrote:
> This all sounds too technical. So you're basically saying that when 
> two servers communicate to one another, one of them thinks that the 
> e-mail originated from the other server, then their own?
> Like if I sent out a lot of regular mail, but due to policy changes, 
> the person sorting the mail thinks that the mail didn't come from me, 
> and instead they think that it came from a place that was 
> impersonating me. this is the best analogy I can think of for those 
> who need a simplified version. If anyone has a better explanation that 
> would be great.
> On 22/07/2014 15:34, Jayson Smith via Dectalk wrote:
>> Hello all,
>>
>> Certain Email providers such as Yahoo, Hotmail, and Comcast, seem to 
>> have suddenly implemented new policies which made specific types of 
>> messages to this list bounce. I've upgraded the mailing list software 
>> on my server and changed a setting, so this should now be fixed. 
>> You'll probably notice that the From: line of list messages now looks 
>> a bit different. This is a necessary consequence of the change 
>> required to bring messages into compliance with these large 
>> providers' policies.
>>
>> In short, whenever someone with an Email address at one of these 
>> providers sent a message to the list, and the list would send the 
>> same message to all the subscribers, when those providers saw a 
>> message which appeared to be from their own domains, but wasn't 
>> coming from their servers, they would reject the message. E.G. 
>> someone with a yahoo.com address sends a message to the list. The 
>> list sends that message to everybody. Suddenly, Yahoo is seeing 
>> messages which claim to be from that yahoo.com address, but rather 
>> than coming from a Yahoo server, they're coming from 
>> bluegrasspals.com. Understandably, Yahoo doesn't like that. I've 
>> hopefully fixed this. Please let me know if you see anything 
>> wrong/broken/weird as a result of this change.
>> Jayson
>>
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>
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