Understanding Email Verification Result
After successful email verification, a complete report explaining the status of each email will be generated. The generated report will be more transparent and easy to understand. The terminology used in your email verification report are explained below.
Every email is primarily categorized as either Valid, Invalid or Unknown.
Valid - After a successful SMTP transaction, if receiving mail server accepts the email address, it will be marked as valid email address. It is not recommended to send emails to the addresses which are marked as "Accept All" or "Disposable" even though email address is valid.
Invalid - An email address will be marked as invalid if it is syntactically incorrect or an email account is not exist on receiving mail server.
- Unknown - Sometimes receiving mail server responds very slow or temporarily unable to process requests. In this case, email address will be marked as unknown and email verification won't be counted (This makes QuickEmailVerification different than other service provider). In most cases, such emails can be re-verified after 5 to 10 minutes which will result in either valid or invalid address.
We don't count verification for unknown results and such emails are excluded from credit calculations.
Apart from the email verification results mentioned above, the generated report will contain the associated reason for the given result. Reason string elaborates the email verification result by specifying more detailed reason about the email result. For example, invalid email can be classified further as syntactically 'invalid_email' or receiving server have 'no_mx_record' or 'rejected_email'. The definition of the each reasons are explained below.
|Invalid_email||The syntax of email address is invalid (Not according to RFC standards).|
|Invalid_domain||The domain used in email address doesn't exist.|
|rejected_email||SMTP server rejected email. Email account doesn't exist on receiving server.|
|accepted_email||SMTP server accepted email.|
|no_connect||Could not connect to receiving SMTP server.|
|timeout||Session timeout occurred on remote SMTP server. It happens when receiving mail server is responding too slow.|
|unavailable_smtp||Receiving SMTP server was not available to process a request.|
|unexpected_error||Some unexpected error has occurred on receiving SMTP server.|
|no_mx_record||MX record of the domain doesn’t exist.|
|temporarily_blocked||Email address is temporary greylisted.|
|exceeded_storage||Email account on receiving server has exceeded storage allocation.|
It is also called Catch-All email addresses. Sometimes receiving mail servers are configured such that it accepts all emails sent to them. This can be usually seen in business email addresses. In many cases, the receiving server accepts all emails of the domain and then simply discard the mail or bounce it back to sender. Such bounces can hurt the sender's IP reputation and reduce your deliverability so it is not recommended to send emails to "Accept All" addresses or send it slowly with caution. Deliverability for such addresses are not guaranteed.
Disposable Email Addresses
There are certain service providers which generate temporary email addresses for short period of time like few hours to some days, such addresses are known as "Disposable Email Address". Generally disposable emails are created to receive initial account activation or confirmation mails for sites like discussion forums, e-shopping etc and dispose automatically after given time period. Sending emails to such addresses increase the bounce rate so it is not advisable to send any email to "Disposable Email Address".
Role-based Email Addresses
Role-based email addresses are such emails that does not belong to individual, but to department, designation or company. Owner of Role-based addresses is often changed or emails may be forwarded to multiple recipient. Sending newsletter or campaign emails to such addresses will have negative impact on open rates or may lead to spam complaints so it is not recommended to send any promotional or marketing emails to Role addresses and most of email marketing services rejects such role addresses.