Based on our record, Apollo.io seems to be a lot more popular than Smtp4dev. While we know about 63 links to Apollo.io, we've tracked only 2 mentions of Smtp4dev. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Depends on the infrastructre setup, but if you're able to specify smtp server the backend will use you can you something like https://github.com/mailhog/MailHog or https://github.com/rnwood/smtp4dev to catch any sent email, regardless of email address and read it via the respective api. Both mailhog and smtp4dev have decent api documentation. Source: over 1 year ago
If so you could check out smtp4dev, it gives you a locally hosted client that you can use to intercept any mail send out by your app and displays them in a nice web based gui interface so can see what they look like. Source: almost 2 years ago
Apollo.io seems popular for cold email. Source: 6 months ago
FAAANGM + ATlassian/Uber and similar product based companies 85 lacs - 1.1 cr Startups like coinbase / apollo.io / rippling 80+. Source: 8 months ago
Their data seems pretty good and their features are awesome, but they had a couple of glitches this week that are annoying me. I know they seem to be the best, but has anyone bested them yet? Curious if there's anything out there that's better than Apollo.io. Source: 10 months ago
Tons of options: apollo.io is popular and affordable. If you're looking for recently funded company contact info, saasydb.com is good. Source: 11 months ago
I agree with most people here in that its invaluable. Especially when paired with some other tools like apollo.io and autobound.ai. Source: 11 months ago
MailHog - MailHog is an email testing tool inspired by MailCatcher, but easier to install.
Hunter - Find all the email addresses related to a domain
Mailtrap - Email Delivery Platform that delivers just in time. Great for businesses and individuals.
Lusha - Search less. Sell more.
FakeSMTP - FakeSMTP is a Free Fake SMTP Server with GUI for testing emails in applications easily.
ZoomInfo - ZoomInfo is a B2B database providing detailed business information on people and companies.