Common questions about the Email Verifications
Does an email address marked "deliverable" have no chance of bouncing?
The verifications are never totally sure, but we can guarantee that
more than 95% of "deliverable" email addresses won't bounce.
What exactly does it mean when an email address is marked "risky"?
When an email address is tagged "risky", it means the server check
seems to work, but we have reason to believe the email may not be
read by anyone.
This can happen in several cases, for example:
How many requests are counted for Email Verifications?
The email seems to be received, but the servers also seem to accept
every email address
The email seems to be received, but it looks like gibberish (for
Every verification counts as one request. With a
free account, you can
use up to 150 requests/month. If you need more, you can upgrade to
the plan that suits your needs. Please check our
pricing for more information.
What do you check for when verifying emails?
This is the list of verifications we do:
Valid format: First, we verify the format of the email address is
correct and looks something like "firstname.lastname@example.org".
Gibberish Email Address: We check to ensure the address doesn't look
like a random email address. For example, email@example.com doesn't
pass the test.
Disposable Email Address: We check if the email address has a domain
name used for temporary email addresses.
Webmail Email Addresses: We verify if the email address uses a webmail
like Gmail or Yahoo.
Presence of MX Records: We check if there are MX records on the
domain. If there aren't, the email address can't receive emails.
Presence of SMTP Server: This check is successful if we are able to
connect to the SMTP server (indicated in MX records).
SMTP Check: We test the email address and see if it bounces or not.
Accept-all Domain: We check if the server has a catch-all policy which
accepts all the email addresses.