dns SMTP Relay Service

Send Emails From
Any Software

Get ready-to-use SMTP credentials in seconds. We relay your emails through our pre-warmed SMTP pool with automatic rotation for maximum deliverability.

check_circle Setup in 2 minutes
check_circle Works with any software
check_circle Pre-warmed IPs

How It Works

Three simple steps to start sending emails from your own software

1
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Choose a Package

Pick the right volume for your needs. Pay once, use anytime โ€” no subscriptions.

2
key

Get Credentials Instantly

Receive your SMTP server, login, and password immediately after payment.

3
send

Start Sending

Plug the credentials into any email software, script, or application and send.

Why Use Our SMTP Relay

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Pre-Warmed IPs

Our SMTP pool uses pre-warmed IP addresses with established sender reputation for high deliverability.

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Automatic Rotation

Emails are automatically distributed across multiple SMTP servers to maximize inbox placement.

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Real-Time Analytics

Track sent emails, delivery status, and remaining credits in your dashboard.

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Any Software

Works with Thunderbird, Outlook, PHP mail(), Python smtplib, Node.js, custom scripts โ€” anything that supports SMTP.

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Instant Setup

No domain verification or DNS setup needed. Buy, get credentials, and start sending immediately.

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Pay As You Go

No monthly subscriptions. Buy a package, use it at your own pace. Credits never expire.

Simple Integration

Just standard SMTP โ€” no proprietary APIs or SDKs. Use the same code you already know.

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Standard SMTP Protocol

Port 2525, TLS encryption, standard authentication

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Any Programming Language

Python, PHP, Node.js, Ruby, Go, Java, C# โ€” if it can send email, it works

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No Migration Needed

Just swap SMTP host, login, and password in your existing configuration

python
import smtplib
from email.mime.text import MIMEText

msg = MIMEText("Hello from Postigo!")
msg["Subject"] = "Test Email"
msg["From"] = "[email protected]"
msg["To"] = "[email protected]"

# Connect to Postigo SMTP
server = smtplib.SMTP("smtp.postigo.net", 2525)
server.starttls()
server.login("your_login", "your_password")
server.send_message(msg)
server.quit()

print("Sent!")

Simple, Transparent Pricing

Pay once โ€” no subscriptions, no hidden fees. Credits never expire.

SMTP Starter

5000 emails

$5

$1.00 / 1K emails

  • check SMTP credentials
  • check Pre-warmed IPs
  • check Auto rotation
  • check Real-time stats
Get Started

SMTP Growth

20000 emails

$15

$0.75 / 1K emails

  • check SMTP credentials
  • check Pre-warmed IPs
  • check Auto rotation
  • check Real-time stats
Get Started
Most Popular

SMTP Business

50000 emails

$30

$0.60 / 1K emails

  • check SMTP credentials
  • check Pre-warmed IPs
  • check Auto rotation
  • check Real-time stats
Get Started

SMTP Enterprise

150000 emails

$60

$0.40 / 1K emails

  • check SMTP credentials
  • check Pre-warmed IPs
  • check Auto rotation
  • check Real-time stats
Get Started

Who Is This For

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Developers

Add email sending to your app or script with standard SMTP. No API integration needed.

campaign

Marketers

Use with your favorite email tool โ€” Thunderbird, mail merge plugins, or bulk senders.

business

Businesses

Send transactional emails from your CRM, ERP, or custom internal systems.

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Automation

Integrate into CI/CD pipelines, monitoring alerts, cron jobs, or any automated workflow.

Frequently Asked Questions

What SMTP settings should I use? expand_more

Server: smtp.postigo.net

Port: 2525

Security: TLS/STARTTLS

Auth: Login and password from your dashboard

Do credits expire? expand_more
No. Once purchased, your email credits never expire. Use them at your own pace.
Can I use this with my own domain? expand_more
Yes. You can set any From address. For best deliverability, we recommend setting up SPF and DKIM records for your domain.
What software is compatible? expand_more
Any software that supports SMTP: Thunderbird, Outlook, PHP mail(), Python smtplib, Node.js Nodemailer, WordPress plugins, CRM systems, custom scripts, and more.
Is there a daily sending limit? expand_more
There is no strict daily limit. You can send up to your purchased volume at any rate. For very high volumes, we recommend spreading sends to maintain deliverability.
What payment methods do you accept? expand_more
We accept credit/debit cards (Visa, Mastercard) and cryptocurrency payments.

Ready to Start Sending?

Get your SMTP credentials in under 2 minutes and start sending from any software today.

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