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Comment by dizhn | Hacker News Reader

I don't know if it's from this handbook but I've been getting the same kind of cold emails from a bunch of different companies (mostly IT) who are very peculiar in that they all keep replying to themselves constantly and wanting to "connect" like they are peddling some top notch shit that I'd be crazy to miss. All of them also have a weird bottom section where you have to reply "No. Thx!" or something like that to stop receiving emails. I never tried to do that.

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I never unsubscribe (as I never subscribed in the first place) I just: right click > junk > block sender

If I keep getting stuff from them/they mildly changed email addresses - I just block the whole domain.

I suggested to our Cyber team that for the majority of people here we could just block all incoming emails from domains other than our own - and then operate a whitelist or holding pen for other incoming emails. In an average year, I can count on one hand the times I need to email externally, or am expecting to receive an external email - my roll (as many others) is inward facing.

Presumably easy enough to filter the corporate inbox to have Internal and External views - properly executed would probably make a top 10 productivity hacks list.

Seems like a good way to get your whole domain blocked at my MX

That's why TFA recommends buying multiple domains. He literally has a formula:

     (Desired Daily Volume / 60) x 1.1

He recommends that each domain have only 3 inboxes, and each inbox sends max 20 emails per day. So if you want to send 6000 emails per day, you should by 110 domains.

So block away! Unless you're using regexes, it won't make a big dent.

Why doesn't he just do:

  (Desired Daily Volume / 54.54)

Or even easier to remember:

  (Desired Daily Volume / 55)

Probably the same reason we write things like

SECONDS_IN_DAY = 60 * 60 * 24

The individual components have some meaning that loses clarity when we just write the result of the calculation

I do that because I can't remember that there are 86400 seconds in day so work it out from first principles each time.

I also sing the alphabet song (in my head) when I want to know which is the 19th letter of the alphabet.

Alright, then. Let's assume that 1.1 is a safety factor. From whence 60?

3 sales representatives, each sending 20 cold emails per day. Yeah, it should be 3 * 20.

So if he adds more salesmen, he needs less domains? ))

They'll eventually run out of domains.

This supposed email marketing genius has as his technique "use a bunch of VPNs to buy separate gsuite and office365 accounts, and with these accounts, send from a bunch of similar sounding domains".

I've just brought his name and business name to the attention of some people at Microsoft and Google who can get it into the right hands. I do not think this genius plan is going to work out well for him.

That would be a juicy account, they are going to get their own VIP account executive and tickets to the superbowl.

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