Location:Home > Email Service Knowledge > Article content

13 Reasons Why Your Sendinblue SMTP Is Not Activated

GoodJack6Month Ago (09-20)Email Service Knowledge59

Hello everyone, I’m Kent, the website admin. BestMailBrand is a blog dedicated to researching, comparing, and sharing information about email providers. Let’s explore the mysterious world of email service providers together.


AotSend Email API Best 24+ Email Marketing Service (Price, Pros&Cons Comparison) What is a Managed Email API, How it Works? Best 25+ Email Marketing Platforms (Compare Authority,Keywords&Traffic)

When it comes to email marketing, Sendinblue stands as a popular choice for businesses due to its reliability and user-friendliness. However, sometimes users may encounter issues where their Sendinblue SMTP (Simple Mail Transfer Protocol) service is not activated. Here are thirteen potential reasons why this might occur:

1. Incorrect SMTP Settings

One of the most common reasons for SMTP not being activated is incorrect settings. This could include wrong server addresses, ports, or authentication details. Always double-check your SMTP settings against Sendinblue's official documentation.

2. Account Verification Pending

Before you can start sending emails via Sendinblue's SMTP, your account needs to be verified. If this process is not complete, your SMTP service may not be activated.

13 Reasons Why Your Sendinblue SMTP Is Not Activated

3. Credit Card Verification

If you're on a paid plan, your credit card details need to be verified. Any issues with payment or credit card validation can delay or prevent SMTP activation.

4. Domain Authentication

Sendinblue requires domain authentication to ensure email deliverability. If your domain is not properly authenticated, it can affect SMTP activation.

5. IP Address Blacklisting

If Sendinblue detects suspicious activity from your account, such as a sudden increase in email volume or a high bounce rate, it may blacklist your IP address, preventing SMTP activation.

6. Daily Sending Limit Reached

Sendinblue sets daily sending limits based on your account type. If you reach these limits, your SMTP service may be temporarily suspended.

7. Technical Issues on Sendinblue's Side

Sometimes, technical glitches or server maintenance on Sendinblue's end can affect SMTP services. Checking Sendinblue's status page or contacting their support team can provide clarity.

8. Firewall or ISP Restrictions

Certain firewalls or ISPs may block SMTP ports, preventing you from activating the service. Check with your IT department or ISP for any such restrictions.

9. Incorrect DNS Records

Proper DNS records are crucial for email deliverability. Misconfigured DNS records can interrupt SMTP activation.

10. Software Conflicts

Software installed on your system, such as antivirus or firewall programs, may conflict with Sendinblue's SMTP settings.

11. Email Content Flags

If your email content triggers spam filters, it can affect your ability to send emails via SMTP. Ensure your content is compliant and doesn't contain spammy keywords.

12. Account Suspension

Violation of Sendinblue's terms of service can lead to account suspension, which would naturally prevent SMTP activation.

13. Outdated Software or Plugins

If you're using a plugin or integration to connect with Sendinblue, ensure it's up to date. Outdated software can cause compatibility issues.

In conclusion, there are various reasons why your Sendinblue SMTP might not be activated. Troubleshooting these issues often requires a systematic approach, checking each potential cause until the problem is resolved. Remember to always refer to Sendinblue's official documentation and, if necessary, reach out to their support team for assistance.

AotSend Email API Best 24+ Email Marketing Service (Price, Pros&Cons Comparison) What is a Managed Email API, How it Works? Best 25+ Email Marketing Platforms (Compare Authority,Keywords&Traffic)

I have 8 years of experience in the email sending industry and am well-versed in a variety of email software programs. Thank you for reading my website. Please feel free to contact me for any business inquiries.




🔔🔔🔔 【Sponsored】

AOTsend is a Managed Email Service API for transactional email delivery. 99% Delivery, 98% Inbox Rate.
Start for Free. Get Your Free Quotas. Pay As You Go. $0.28 per 1000 Emails.


You might be interested in:
Why did we start the AOTsend project, Brand Story?
What is a Managed Email API, How it Works?
Best 24+ Email Marketing Service (Price, Pros&Cons Comparison)
Best 25+ Email Marketing Platforms (Authority,Keywords&Traffic Comparison)

🔔🔔🔔

    Scan the QR code to access on your mobile device.

    Copyright notice: This article is published by AotSend. Reproduction requires attribution.

    Article Link:https://www.bestmailbrand.com/post3641.html

    “13 Reasons Why Your Sendinblue SMTP Is Not Activated” 的Related Articles

    17 Email Samples for Sending Documents

    17 Email Samples for Sending Documents

    When it comes to professional communication, emailing documents is a common practice. Whether you're sending a report to your boss, sharing a proposal...

    Top 10 Google Gmail API Integration Tips for Enhanced Email Management

    Top 10 Google Gmail API Integration Tips for Enhanced Email Management

    Top 10 Google Gmail API Integration Tips for Enhanced Email Management1. Mastering Authentication with Google Gmail APIWhen integrating the Google Gma...

    19 Steps to Change Gmail Password for My Account

    19 Steps to Change Gmail Password for My Account

    Introduction In the digital age, online security is paramount. Changing your Gmail password regularly is a crucial step in maintaining the safety of y...

    17 Tips for Securing Google Gmail Password

    17 Tips for Securing Google Gmail Password

    When it comes to email services, Google Gmail stands out as one of the most popular choices. However, with the rise of cyber threats, it's crucial to...

    Top 6 Mailboxlayer API Features for Email Verification

    Top 6 Mailboxlayer API Features for Email Verification

    Top 6 Mailboxlayer API Features for Email VerificationIn the digital age, ensuring the validity of email addresses is crucial for businesses and devel...

    Best 9 Ways to Send Mail via API Efficiently

    Best 9 Ways to Send Mail via API Efficiently

    Best 9 Ways to Send Mail via API EfficientlyIntroduction to Sending Mail via APIIn today's digital age, sending mail via API has become a crucial aspe...