Security and Reliability in Email Validation | SafetyMails
Understand how SafetyMails performs technical verification of emails with security, data protection, LGPD compliance, and zero risk to your reputation.
Priscila G.
Last Update 4 days ago
Email verification involves sensitive technical analysis. That's why security, data integrity, and reputation protection aren't just differentiators—they're fundamental to the service.
This article explains in a transparent way how SafetyMails performs technical validation, how it protects your information, and why the process doesn't put your domain or reputation at risk.
This article explains in a transparent way how SafetyMails performs technical validation, how it protects your information, and why the process doesn't put your domain or reputation at risk.
How email technical verification works
Email validation is a technical process consisting of multiple automated layers of analysis.
Entre as etapas realizadas estão:
Entre as etapas realizadas estão:
- Syntactic and structural verification of the address
• Domain analysis (DNS, MX, and active records)
• Checking the existence of the receiving server
• Risk analysis (disposable, temporary, spam traps, inactive domains)
• Technical validation of receiving capacity
The verification is performed using standard Internet technical protocols, without sending a message to the recipient.
Does SafetyMails send emails during validation?
No.
The process does not trigger messages, generate notifications to the recipient, or create any visible interaction in the inbox.
All validation occurs through technical queries to the server responsible for the domain, using appropriate protocols.
This means:
• The end user does not receive any communication
• There is no impact on the recipient's experience
• The process is invisible to the recipient
The process does not trigger messages, generate notifications to the recipient, or create any visible interaction in the inbox.
All validation occurs through technical queries to the server responsible for the domain, using appropriate protocols.
This means:
• The end user does not receive any communication
• There is no impact on the recipient's experience
• The process is invisible to the recipient
Is confirmation made with the providers?
The verification technically queries the server responsible for the email domain.
The system analyzes:
• Server existence and configuration
• Receiving capacity
• Technical responses provided by the server itself
There is no direct partnership with providers such as Gmail or Outlook. What exists is the use of the same universal technical protocol adopted by the entire global email infrastructure.
The system analyzes:
• Server existence and configuration
• Receiving capacity
• Technical responses provided by the server itself
There is no direct partnership with providers such as Gmail or Outlook. What exists is the use of the same universal technical protocol adopted by the entire global email infrastructure.
Can SafetyMails validate emails worldwide?
Yes.
There are no geographical limitations for technical validation.
The process occurs directly on the server infrastructure responsible for the domain of the analyzed address. This means that the user's physical location does not interfere with the verification.
Today, it is common for:
• The user to be in Brazil
• The server to be in India
• The domain to use infrastructure in the United States
• Or is distributed across multiple global data centers
Most corporate and public emails use global data centers from large providers, such as Google and Microsoft.
Since validation uses standard internet technical protocols, SafetyMails can verify addresses regardless of the server's geographic location.
The email infrastructure is global — and so is validation.
There are no geographical limitations for technical validation.
The process occurs directly on the server infrastructure responsible for the domain of the analyzed address. This means that the user's physical location does not interfere with the verification.
Today, it is common for:
• The user to be in Brazil
• The server to be in India
• The domain to use infrastructure in the United States
• Or is distributed across multiple global data centers
Most corporate and public emails use global data centers from large providers, such as Google and Microsoft.
Since validation uses standard internet technical protocols, SafetyMails can verify addresses regardless of the server's geographic location.
The email infrastructure is global — and so is validation.
Is there a risk of being blacklisted?
No.
Technical verification does not trigger campaigns, send messages, or perform actions that generate sending volume.
Blacklists are the result of inappropriate sending practices, such as:
• Sending to unverified lists
• High volume of hard bounces
• Sending to spam traps
Rather than creating risk, validation significantly reduces the likelihood of blocks and reputation issues.
Technical verification does not trigger campaigns, send messages, or perform actions that generate sending volume.
Blacklists are the result of inappropriate sending practices, such as:
• Sending to unverified lists
• High volume of hard bounces
• Sending to spam traps
Rather than creating risk, validation significantly reduces the likelihood of blocks and reputation issues.
Are there any limitations per provider (Gmail, Outlook, Hotmail)?
Each provider has its own internal technical response policies.
Some may return more restrictive or temporary responses. Therefore, certain addresses may be classified as:
• PENDING
• UNKNOWN
This does not indicate a platform failure, but rather a temporary limitation of the response provided by the analyzed server itself.
The system classifies each response transparently to support strategic sending decisions.
Some may return more restrictive or temporary responses. Therefore, certain addresses may be classified as:
• PENDING
• UNKNOWN
This does not indicate a platform failure, but rather a temporary limitation of the response provided by the analyzed server itself.
The system classifies each response transparently to support strategic sending decisions.
Data retention and automatic deletion
Verified lists remain available for up to 3 months on the platform.
After this period, they are automatically deleted in accordance with internal retention policy.
If a list is deleted manually, it cannot be recovered.
This policy ensures:
• Reduction of unnecessary storage
• Greater data protection
• Compliance with good security practices
After this period, they are automatically deleted in accordance with internal retention policy.
If a list is deleted manually, it cannot be recovered.
This policy ensures:
• Reduction of unnecessary storage
• Greater data protection
• Compliance with good security practices
Can I recover a deleted list?
No.
Once deleted, the list is permanently removed from the system.
We always recommend downloading the final report after the scan is complete.
Once deleted, the list is permanently removed from the system.
We always recommend downloading the final report after the scan is complete.
Compliance with LGPD
SafetyMails operates in accordance with the General Data Protection Law (LGPD).
Among the main measures applied are:
• Restricted access control
• Environment monitoring
• Data encryption
• Protection against unauthorized access
• Internal information security policies
The lists sent are not used for any purpose other than the provision of the contracted service. Read more about this in our Terms of Use, Privacy Policy, and Data Protection Policy.
Among the main measures applied are:
• Restricted access control
• Environment monitoring
• Data encryption
• Protection against unauthorized access
• Internal information security policies
The lists sent are not used for any purpose other than the provision of the contracted service. Read more about this in our Terms of Use, Privacy Policy, and Data Protection Policy.
Technical security measures
Based on SafetyMails' data protection policy, measures include:
• Infrastructure with continuous monitoring
• Protection against external attacks
• Network security layers
• Internal permission control
• Data leak prevention processes
Security is a structural part of the operation.
• Infrastructure with continuous monitoring
• Protection against external attacks
• Network security layers
• Internal permission control
• Data leak prevention processes
Security is a structural part of the operation.
Good security practices for users
We recommend:
1. Using secure authentication for your account
2. Not sharing credentials
3. Downloading reports after verification
4. Integrating the real-time API into forms to prevent invalid email entries
Security is a shared responsibility.
1. Using secure authentication for your account
2. Not sharing credentials
3. Downloading reports after verification
4. Integrating the real-time API into forms to prevent invalid email entries
Security is a shared responsibility.