There are online formatters like smartystreets.com which can validate and format your international address. Is this what you are looking for? Source: over 2 years ago

What I've noticed after watching those sneaker botting videos is that they can make as many emails, proxies and debit cars numbers as they want but.... Not addresses. According to this video they mix up the way their address are written which somehow fools their system into thinking there aren't repeats even though the shoes some how end up at the same address. What these sites really need is a third party service... Source: over 3 years ago

At one point they used SmartyStreets to validate your address and if it thinks your duplex and your neighbor is the same house, they'll be treated as one so you cannot get fiber now. Source: over 3 years ago

You can give smartystreets.com a try however for that many records it might cost you just a bit. Source: over 3 years ago

A good source that is free in small quantities for all states and in the world: smartystreets.com. Source: over 3 years ago

Also.. There are a few preferred email lookup integrations expandi.io has. I no longer see them listed on site. But they have a ton of built I integrations plus api + webhooks. There chat/email support is very good you could ask. Https://help.expandi.io/en/collections/3042112-webhooks-and-integrations-api. Source: 12 months ago

If you want to target people that have not interacted with any landing page pixel or LinkedIn content, only those that connected, I would use https://expandi.io/ first to get them pixeled on a page or post/article/opt-in form. Then make custom audience on that. Otherwise I think what you got is the best way. Zapier & make & Waalaxys etc. Will all cost operations. But perhapse it is not worth targeting those not... Source: 12 months ago

Also cold emails / DMS to business. Try linkedIN marketing tool like https://expandi.io. Source: over 1 year ago

Live broke for a few months while things close up, save up some of that juicy six figs, then when shit hits the fan, use the saved up money to hire a lead gen expert or invest in lead gen software like expandi.io. Source: over 2 years ago

I use Expandi and while it's not cheap, it works well. We have gotten big enough to outsource some of the building to a marketing company and they run our connections now. I post my own daily content, scheduled and unscheduled. Unscheduled content is "Me being me" and scheduled content is educational in nature. Source: over 2 years ago