Also, we've definitely seen spam with emoji, especially the ones that end
up animated, ie:

https://shkspr.mobi/blog/2015/05/how-gmail-lets-spammers-grab-your-attention-with-emoji/

I don't think we have explicit rules about that, but it's always possible
the ML models have learned some.[1]

Brandon

[1] assuming the information is available as a signal, of course, but I
haven't looked to see if any of the signals would have it

On Wed, Dec 14, 2016 at 10:57 AM, Brandon Long <[email protected]> wrote:

> I really don't think we have explicit rules to catch A/B testing type
> campaigns.  OTOH, if our system thinks either of them is spam, that will
> taint the other one as well if the rate of manual marking is high enough
> and there are enough features in common.
>
> Brandon
>
> On Wed, Dec 14, 2016 at 10:32 AM, Tim Starr <[email protected]> wrote:
>
>> Yes, I have one client who refuses to do any A/B campaigns because of the
>> negative impact at Gmail when he does so. Gmail seems to interpret such
>> things as attempts to circumvent filtering and penalize accordingly.
>> However, the effect may not be that great if all else is equal, as I have
>> tons of other clients who do A/B tests without noticing any such impact.
>> So, either they are not as aware, or the effect is not that widespread or
>> consistent.
>>
>> -Tim
>>
>> On Tue, Dec 13, 2016 at 5:26 AM, Marco Franceschetti via mailop <
>> [email protected]> wrote:
>>
>>> Hi
>>>
>>> I am writing from ContactLab's Deliverability Team. One of our client
>>> has introduced multivariate testing on subject lines in the last 3 months.
>>> Gmail's inbox is since then more and more difficult to reach.
>>>
>>> I am not aware of all the methodological details...
>>> The multivariate tests are performed only on a variable portion of the
>>> list, from 10% up to 40% in recent sends, and not on all campaigns.
>>>
>>> Gmail's Postmaster tool shows that Domain and IP Reputation are
>>> generally decreasing in the last 3 months, after being almost stable for
>>> around 1 year.
>>> Inbox Placement on Mailbox Monitor in Gmail is also getting more and
>>> more problematic.
>>>
>>> The multivariate tested subject lines are supposed to be more
>>> intriguing: they have introduced capital letters, special characters and
>>> symbols.
>>> Some examples:
>>>
>>> 🎉 WOW 🎉 We've chosen [...]
>>> ❯❯ Oh... Look ❯❯ You've just discovered [...]
>>> ✔ We've Picked You For Extraordinary Deals
>>>
>>> Apparently, nothing changed (i.e. unsub or complaint rate...) but:
>>> -  the introduction of multivariate testing and
>>> - the new approach in the subject line's "style" in part the campaigns.
>>>
>>> So, my question is: anyone has noticed if multivariate testing per se
>>> can have a negative impact on Gmail's filters?
>>> Or, could the new style approach be to blame?
>>> Or both?
>>>
>>> Regards, Marco
>>>
>>> Marco Franceschetti
>>> Head of Deliverability | ContactLab
>>> M. +39 331 1717 978 | T. +39 0228311887
>>> [email protected]
>>>
>>> Via Natale Battaglia, 12 | Milano
>>> contactlab.com/it
>>>
>>> _______________________________________________
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>>> https://chilli.nosignal.org/cgi-bin/mailman/listinfo/mailop
>>>
>>
>>
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>>
>
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