Preventing technical glitches involves a combination of best practices:
Regularly test your emails using A/B testing to identify and fix issues before sending them to your entire list. Ensure your email templates are responsive and compatible with different email clients. Use a reputable email service provider (ESP) known for high deliverability rates. Keep your email list clean by regularly removing invalid or inactive email addresses. Use alt text for images to ensure that your message is still conveyed even if images do not load.