[Cialug] Email host evaluation

[Claus Niesen]

Paul,
Can you go into detail why it's Craigslist's fault that the mail sent through Gandi isn't arriving, especially since Tuffmail doesn't has any issues.
My highest priority is that all legit emails arrive and if they can't that some notification is given. 
I'm really not too concerned with any of the items you list.  Gandi's one size fits all black box approach of spam handling is acceptable.  Though I like Tuffmail's highly user configurable setup much more.
My original question is about how to know that the email services is well supported, correctly configured, issues are fixed promptly, security fixes are applied, and the like.  Basically, the internal stuff that one can't see until something bad happens. 

Thanks,
  Claus
 

Gesendet: Freitag, 01. Juli 2016 um 17:29 Uhr
Von: "Paul Gray" <gray at cs.uni.edu>
An: "Central Iowa Linux Users Group" <cialug at cialug.org>
Betreff: Re: [Cialug] Email host evaluation
On 07/01/2016 05:07 PM, Claus Niesen wrote:
> My replies to the anonymized craigslist addresses don't get delivered and I don't receive a bounce email. I do get a bounced email if I send a mail to an invalid craigslist address. Had an extensive email exchange with Gandi but they came to the conclusion that it's craigslist fault

^ This (Craigslist's fault).

Other things that you didn't mention that you might want to throw in the
mix for consideration:

*) Do they employ greylisting?
*) - If so, do they give an option for setting duration?
*) Do they DKIM sign messages in transit?
*) - If so, for your specific domain?
*) Do they themselves use RBL lists for incoming?
*) - If so, which ones? Spamhaus, Sorbs, Barracuda?
*) Do they scan or otherwise "tag" transit?
*) - DKIM as mentioned above, but any "X-scanned by XXX" header crap?
*) What do the SPF records reveal about their egress servers?
*) - Firm rejects, or just soft fails/warnings?
*) - SPF's include "includes" (See Dan R's SPF records for Drake!)

That should be enough to confuse you a bit more. Sorry.

-Paul
_______________________________________________
Cialug mailing list
Cialug at cialug.org
http://cialug.org/mailman/listinfo/cialug