🌐 Custom SMTP Support: You can seamlessly connect to various SMTP servers, including Gmail and iCloud, with the flexibility to use custom servers and ports. 

📊 Gmail API Integration: Leverage the power of Gmail API to streamline your email sending process, enhancing efficiency and reliability. 

🔒 Proxy for IP Rotation: Ensure anonymity and robustness by employing rotating proxies or static proxies to dynamically change your IP address while sending emails. 

⏰ Scheduled Sending: Plan your email campaigns effectively by scheduling emails to be sent at specific times, guaranteeing maximum impact. 

📎 Rich Attachments Handling: Attach HTML files and transform them into PDF or JPG formats, allowing for visually appealing and accessible content sharing. 

✨ Dynamic Tags in Emails: Personalize your emails using custom tags within the email body and HTML files. These tags are automatically replaced with random values, enhancing engagement. 

🔄 Randomized Attachment Names: Add a layer of uniqueness by randomizing attachment names, enhancing recipient curiosity and interaction. 

🙌 Sender Name Customization: Tailor your sender name according to your branding or preference, ensuring a personalized touch in your emails. 

📊 Excel-Driven Variety: Express Mailer Pro extracts random subject lines, body content, and sender names from Excel files, delivering diverse and engaging email content. 

⚙️ Speed Control: Adjust the speed of email delivery to match your needs, whether you're sending 1000 emails per second or customizing the pace for optimal outreach.