3 ms·

As someone currently dealing with this on multiple fronts: it's complicated. ESP's block out different ranges for different customers, dedicated vs shared IPs,

As someone currently dealing with this on multiple fronts: it's complicated. ESP's block out different ranges for different customers, dedicated vs shared IPs, etc. really hard to generalize.

npsomaratna 7y ago
Shameless plug: we had the same issue with our deliverability rates. We ended up creating a tool to automate the process of checking spam % vs. inbox % for various email subject/body combinations: https://vetter.monsoonyeti.com/ https://vetter.monsoonyeti.com/
- thedance 7y ago
  Interesting, but it’s hard to see the big utility. Most spam signals are based on behavior and reputation rather that content. Your email can look clean at first, but if a handful of gmail accounts mark it as spam then your whole network will be on the bozo list within seconds. Gmail in particular is capable of reclassifying messages, if it gets delivered but then your reputation falls, it will get moved to spam if the user hasn’t seen it yet, so initial deliverability is not final. Maybe the other big operators are more content-based?
  - npsomaratna 7y ago
    From repeated testing using multiple sender accounts and domains, we've noticed that Outlook seems to pay significant weight to the content of the email - possibly as much as or even more than the email/domain of the sender. What you say certainly rings true about Gmail - email subjects/bodies that set off warning bells in Outlook seemingly pass through Gmail without a hitch if your account has a good sender reputation - and vice-versa. However, we've also noticed that even if you have a good sender reputation, Gmail can and will (automatically) spam your content if the wording is too spammy/phishy. Yahoo seems to be midway between Outlook and Gmail, at least from what I've observed. Anyway, do give the tool a spin and try out various types of emails. I'm sure you'll find the results interesting! [EDIT] Oh, BTW - you can set the tool to use your own service as well! Obviously, this will be more accurate than using the default (which is an SES account we use).

As someone currently dealing with this on multiple fronts: it's complicated. ESP's block out different ranges for different customers, dedicated vs shared IPs, etc. really hard to generalize.

npsomaratna 7y ago

Shameless plug: we had the same issue with our deliverability rates. We ended up creating a tool to automate the process of checking spam % vs. inbox % for various email subject/body combinations: https://vetter.monsoonyeti.com/ https://vetter.monsoonyeti.com/

thedance 7y ago
Interesting, but it’s hard to see the big utility. Most spam signals are based on behavior and reputation rather that content. Your email can look clean at first, but if a handful of gmail accounts mark it as spam then your whole network will be on the bozo list within seconds. Gmail in particular is capable of reclassifying messages, if it gets delivered but then your reputation falls, it will get moved to spam if the user hasn’t seen it yet, so initial deliverability is not final. Maybe the other big operators are more content-based?
- npsomaratna 7y ago
  From repeated testing using multiple sender accounts and domains, we've noticed that Outlook seems to pay significant weight to the content of the email - possibly as much as or even more than the email/domain of the sender. What you say certainly rings true about Gmail - email subjects/bodies that set off warning bells in Outlook seemingly pass through Gmail without a hitch if your account has a good sender reputation - and vice-versa. However, we've also noticed that even if you have a good sender reputation, Gmail can and will (automatically) spam your content if the wording is too spammy/phishy. Yahoo seems to be midway between Outlook and Gmail, at least from what I've observed. Anyway, do give the tool a spin and try out various types of emails. I'm sure you'll find the results interesting! [EDIT] Oh, BTW - you can set the tool to use your own service as well! Obviously, this will be more accurate than using the default (which is an SES account we use).