Verify550 is the ultimate tool for validation and verification all in one easy step. Validation (eHygienics technology) removes threats like bots, traps, protestors, litigators, syntax and checks the mx records for inconsistencies, while verification performs smtp handshakes recording the result giving you accurate information on soft or hard bounces.
You can verify emails with our online application or with our real-time API.
Our real-time API is available in PHP, Python, Node.js, and .net.
Follow along below to learn how to use Verify 550 to securely, easily, and efficiently validate and verify your list of email addresses with detailed reports.
2.Sign Up
To begin using Verify 550 you will first need to create a free account. You can sign up by visiting the link here: https://app.verify550.com/users/signup
Look for a confirmation link and confirm you signed up. Login and you will see the main console.
3.Validating & Verifying Email Addresses
Utilize the drag-and-drop functionality to seamlessly transfer your list from your local drive directly into the designated area indicated by the dotted outline. Alternatively, opt for the ‘Import lists’ option and proceed through the straightforward steps to upload your list. Upon successful upload, designate your file by selecting it, then initiate the processing by clicking ‘Start List.’ Allow a brief moment for the system to process the data, after which you’ll be able to download a thoroughly verified list. Keep in mind, the processing duration scales with the size of the list, necessitating patience for larger datasets.
4. Verify 550 API
Our API can be integrated into your web applications to verify email addresses in real time. Using the API requires only a few lines of code. For more details, please visit our Developer API section below.
Developer API
Verify 550 provides a developer API to integrate the email verification process with your service.
Our API provides the ability to check individual email addresses and can accept an email list through file upload.
Our Guarantee
The verification & validation process of Verify 550 always provides 100% accurate results in real-time. For each email address, we present a detailed validation status. We are extremely confident about the level of accuracy we provide, and we are sure that none of your emails will bounce after getting checked with Verify 550.
5.How Verify 550 Works
Verify 550 uses a prominent mail transfer protocol called SMTP (Simple Mail Transfer Protocol) to check if the user’s email address is invalid or non-working without sending actual emails to that recipient address.
Although this is a simple approach, there is an overhead involved with SMTP, and email servers often behave unexpectedly. Therefore, many companies rely on Verify 550 to provide email verification. We have been in the email and security industry for the last 10 years and have gained a reputation in the email verification process.
Here are our steps we use for emails validation and verification:
Email deduplication – Domains that match our existing database of invalid emails are removed
Domain validation – DNS entries for every email address are checked and validated
Spam-trap removal – Spam-traps and disposable emails are detected
Spamcop removal – Matches and removes against updated static list of 9 million spamcop traps
Risk validation – Remove all of the domains that match our existing database of invalid emails
Syntax verification – Email address syntax is verified according to IETF standard
MTA validation – Checks if a Mail-Transfer-Agent has a valid MX Record
Protestor removal – Matches against updated static list of 300 million protestors and growing
Litigator removal – Matches against updated static list of 12,000 litigators worldwide
Botclickers removal – Matches against updated domain, email and IP’s of known botclickers
Department role removal – Matches against emails that are shared with groups or departments
Domain blacklist – Matches and removes against known blacklist domains
Disposable removal – Matches and removes against temporary and/or disposable emails
6.File Verification
Verify 550 provides multiple avenues for importing your email address list for verification purposes. You have the option to upload CSV, XLS, and TXT files directly from your local computer drive or from cloud storage platforms like Google Drive. Additionally, you can fetch the list from a web server for seamless integration
To upload a file, scroll to Verification on your dashboard, click on Import lists and then specify where your file resides. You can also drag and drop your files from your computer to the dotted area in your dashboard.
While you are uploading a file, make sure the following conditions are met for the process process to work smoothly:
There is only one email address in each row
Email addresses should appear in the same column
The list should not have more than 1 million email addresses
The field names should appear in the first row of the list in order to categorize the list
Below is a screen shot of a file of email addresses to show you how the file should be properly formatted before verification:
Once a list has been processed by Verify 550, a Result column is added in the list to categorize the status of each email. Read more about these statuses at our Result Guide section.
This is how a processed list generally looks:
7.Downloading and Exporting Results
After the verification process, retrieve the results effortlessly in CSV or XLSX formats through a variety of options: opt for a single suppression category, amalgamate multiple suppression categories, isolate deliverables exclusively, or compile all outcomes into a unified file.
To access the verified results, proceed to the ‘Verification’ section within your dashboard. From the ‘Imported Lists’ section, select your desired file, then click ‘Download Results.’ A prompt will appear, allowing you to specify the file category (Deliverable/All Results/Custom Results) and format preference (XLSX/CSV).”
Downloading All Results
You can download your entire list by choosing All Results and then clicking on your desired file type.
Downloading Custom Results
If you want to specify the results downloaded, you can choose Custom Results to specify your criteria and then click on your desired file type.
8.Result Guide
Verify 550’s validation first scans to identify disposable, spam-trap, complaint (protestors), botclicker, litigator, spamcop and domain blacklist emails and then runs the email identification process for verification.
After your file has been validated and verified, each email address in the list will be labeled with one of the following statuses:
Color Code
Status
Description
good
ok
All is OK. The server is saying that it is ready to receive a letter to this address and no tricks have been detected
caution
ok_for_all
The email server is saying that it forwards this email to a catch all
caution
threat_string
Curse words, code, bot and seed strings inside emails
caution
accept_all
The server is set to accept all emails at a specific domain. These domains accept any email you send to them
caution
seed
Artificial email addresses which an email marketer owns
caution
threat_domains
Domains of spam fighters and known complainers
caution
department
Email belonging to a group of people or a role
caution
sleeper_cell
Emails hosted on a spam fighter server
caution
threat_endings
Government and University mail exchanges
do not mail
syntax_error
There is a syntax error in the email address
do not mail
error
The server is saying that delivery failed, but no information about,the email exists
do not mail
p_error
Permanent: The server is saying that delivery failed, but no information about,the email exists
do not mail
dead_server
The email server is dead, and no connection to it could be established
do not mail
unknown
The email delivery failed, but no reason was given
do not mail
disposable
The email is a temporary address to receive letters and expires after certain time period
do not mail
spam_traps
The email address is maintained by an ISP or a third party, which neither clicks nor opens emails
do not mail
bounces
Static list of verified hard bounces – 1 billion
do not mail
liti
Litigators and lawyers whom sue email marketers (traps)
do not mail
lash
Lashback compliance traps
do not mail
proof
Proofpoint spamtrap
do not mail
mx
Mail exchange is not setup correctly
do not mail
protestors
Complainers, screamers and grumblers
do not mail
spamcop_traps
Spamcop traps
do not mail
spamtrap
Confirmed spam fighter trap
do not mail
syntax_error
Leading, trailing spaces, unicode, latin and other characters
do not mail
disp
Domains of temporary email addresses
do not mail
smtp_error
The SMTP answer from the server is invalid or the destination server reported an internal error to us
do not mail
smtp_protocol
The destination server allowed us to connect but the SMTP session was closed before the email was verified
do not mail
unknown_email
The server said that the delivery failed and that the email address does not exist
do not mail
p_unknown_email
Premanant: The server said that the delivery failed and that the email address does not exist
do not mail
t_unknown_email
Temporary: The server said that the delivery failed and that the email address does not exist
do not mail
attempt_rejected
The delivery failed; the reason is similar to “rejected”
do not mail
p_attempt_rejected
Permanent: The delivery failed; the reason is similar to “rejected”
do not mail
t_attempt_rejected
Temporary: The delivery failed; the reason is similar to “rejected”
do not mail
relay_error
The delivery failed because a relaying problem took place
do not mail
p_relay_error
Permanent: The delivery failed because a relaying problem took place
do not mail
t_relay_error
Temporary: The delivery failed because a relaying problem took place
do not mail
antispam_system
Some anti-spam technology is blocking the verification progress
do not mail
p_antispam_system
Permanent: Some anti-spam technology is blocking the verification progress
do not mail
t_antispam_system
Temporary: Some anti-spam technology is blocking the verification progress
do not mail
email_disabled
The email account is suspended, disabled, or limited and cannot receive emails
do not mail
p_email_disabled
Permanent: The email account is suspended, disabled, or limited and cannot receive emails
do not mail
t_email_disabled
Temporary: The email account is suspended, disabled, or limited and cannot receive emails
do not mail
Error email
The server is saying that delivery failed, but no information about,the email exists
do not mail
domain_error
The email server for the whole domain is not installed or is incorrect, so no emails are deliverable
do not mail
p_domain_error
Permanent: The email server for the whole domain is not installed or is incorrect, so no emails are deliverable
Prefix “t“ mean “temporary“, “p_“ mean “permanent“. Prefix very useful because giving additional information about situation:”p_email_disabled” – it means that server say that email is permanently disabled”t_attempt_rejected” it can happens when server just overloaded, and temporary reject verification”p_error” – no information about email existing, but no chance to deliver email in future too”terror” – no information about email existing, but there is some chance that email is alive.
Sub-statuses with prefixes very powerful weapon for email results understanding and choosing email list for mailing.
Learn more about your result codes
9.Account Settings
You will have the following five tabs under Account Settings which you can use to manage your account:
General – contains your user name, contact details and geographical location (country, city, address and zip code)
Manage users:- allows you to invite new users
Billing section – you can enable auto-recharge your account
Invoice – you can see your invoices generated by the system for your account
10.API
Our API makes use of api key based authentication. You can retrieve your API key by visiting the API section of your dashboard.
APIKey
Security scheme type:
API Key
query parameter name:
secret
Email Validation API
Verify 550 provides a developer API to integrate the email verification process with your service.
Our API provides the ability to check individual email addresses and can accept an email list through file upload.
Go to language tab and change it accordingly with your needs.
API results guide
Status
Status2
Description
good
OK
All is OK. The server is saying that it is ready to receive a letter to this address and no tricks have been detected
fail
antispam_system
Some anti-spam technology is blocking the verification progress
caution
ok_for_all
The email server is saying that it forwards this email to a catch all
fail
p_unknown_email
Permanent: The server said that the delivery failed and that the email address does not exist
fail
t_email_disabled
Temporary: The email account is suspended, disabled, or limited and cannot receive emails
fail
spamtrap
Confirmed spam fighter trap
fail
disposable
The email is a temporary address to receive letters and expires after certain time period
fail
complainers
Consumers or businesses that have complained directly to the ISP (not related to any report spam buttons)
The response will be returned in the form of a plain text string:
Response
Description
ok
The supplied email address has passed all verification tests
fail
The supplied email address has failed one or more tests
unknown
The supplied email address can not be accurately tested
incorrect
No email address was provided in the request or it contains a syntax error
key_not_valid
No api key was provided in the request or it was invalid
missing parameters
There are no validations remaining to complete this attempt
When the response is fail it can be for one of the following reasons:
Reason
The address provided does not exist
The mailbox is full
The address provided is a disposable email address
The address provided is not in a valid format
The address provided is a role account
The address provided does not have a valid dns
The address provided does not have a mx server
The address provided was found in your internal blacklist containing previously failed addresses
The domain provided was found in your domain blacklist
PARAMETERS
Query Parameters ?
email
string Required
Email address to test.
200 OK
RESPONSE SCHEMA
String
/verifyApiFile
Submit a list of emails for verification. Upload a file containing your list of emails and it will be returned with an additional field that assigns each email a verification status.
This endpoint expects the file to be in the same format as described in our File Verification section. The updated file will have an additional field attached as described in our Result Guide section.
The response will be returned in the form of a plain text string:
Response
Description
<upload-id>
A number representing the file being processed.
no_credit
Your current account balance is $0.
cannot_upload_file
The uploaded file could not be processed due to incorrect formatting or broken upload.
key_not_valid
No api key was provided in the request or it was invalid.
missing parameters
There are no validations remaining to complete this attempt.
After receiving the upload-id, you can check the processing status and retrieve the finished results using the /getApiFileInfo endpoint.
PARAMETERS
Query Parameters ?
filename
string Required
Filename of uploaded file.
FormData Parameters ?
file_contents
file Required
File contents attached using Content/Type: multipart/form-data.
Responses
200 OK
RESPONSE SCHEMA
String
/getApiFileInfo
Returns the processed file submitted using the /verifyApiFile endpoint or its current processing status.
If the file is still being processed, a response like this will be returned: 10700|my_emails.txt|no|200|150|progress|1445878121||
If the file is ready for downloading, the response will look like this: 10700|my_emails.txt|no|200|200|finished|1445878121|https://apps.verify550.com/app/webroot/files/52/655/result_ok_10700_2015-10-26.csv|https://apps.verify550.com/app/webroot/files/52/655/result_all_10700_2015-10-26.csv
The returned response takes the following form: {file_id}|{filename}|{unique}|{lines}|{lines_processed}|{status}|{timestamp}|{link_ok}|{link_all}
Field
Description
{upload_id}
The upload id provided.
{filename}
Filename for the results file, sames as provided to the /verifyApiFile endpoint.
{unique}
Will be “yes” or “no”. Indicates if the remove duplicates option was selected during file upload.
{lines}
Total number of parsed emails in the file.
{lines_processed}
Number of currently processed emails.
{status}
File status. It will be one of “new”, “parsing”, “incorrect”, “waiting”, “progress”, “suspended”, “canceled”, “finished”.
{timestamp}
Date and time when the file was uploaded (in unix format).
{link_all}
Link to the report containing all supplied email addresses. Will be empty if the file has not finished processing.
{link_ok}
Link to the report containing email addresses that have passed verification. Will be empty if the file has not finished processing.
If an error occurred, one of the following responses will be returned:
Error
Description
error_file_not_exists
Supplied upload id does not exist under your account.
key_not_valid
The provided api key is invalid.
missing parameters
There are no validations remaining to complete this attempt.
PARAMETERS
Query Parameters ?
id
string
The upload id as supplied by the /verifyApiFile endpoint.