Quick Definition
Email deliverability refers to the ability of email to successfully reach recipients' mailboxes (inbox) rather than being rejected, blocked, or filtered (spam folder, blocked). Email deliverability is critical for outbound email effectiveness: if your emails don reach the inbox, they can't generate replies or meetings. Email deliverability depends on multiple factors: sender reputation, domain reputation, email content, sending practices, and recipient engagement. Poor deliverability can severely impact outbound email effectiveness.
Why It Matters
Email deliverability is critical for outbound email because if your emails don't reach the inbox, they can't generate replies or meetings. Poor deliverability can severely impact outbound email effectiveness, waste resources, and damage sender reputation. For B2B companies relying on cold email, deliverability is a critical factor in campaign success.
How It Works
Email deliverability works through multiple factors: sender reputation (reputation of the email sender), domain reputation (reputation of the sending domain), email content (content quality, spam triggers), sending practices (volume, frequency, warmup), and recipient engagement (opens, replies, spam complaints). Email providers (Gmail, Outlook, etc.) evaluate these factors to determine whether to deliver email to inbox, spam folder, or block it.
Real-World B2B Example
A B2B SaaS company improves email deliverability by: warming up new domains for 4 weeks, limiting sending volume to 30-50 emails per day per account, using email verification tools to verify email addresses, avoiding spam triggers in email content, and monitoring deliverability metrics (delivery rate, open rate, spam rate). They improve delivery rate from 70% to 95% and improve campaign effectiveness.
Common Use Cases
- Ensuring cold email reaches the inbox
- Improving campaign effectiveness
- Protecting sender reputation
- Avoiding spam filters
- Scaling cold email campaigns
Common Mistakes to Avoid
- Not warming up new domains properly
- Sending too many emails too quickly
- Not verifying email addresses
- Using spam triggers in email content
- Not monitoring deliverability metrics
Frequently Asked Questions
What is a good email deliverability rate?
A good email deliverability rate is 95% or higher. This means 95% of your emails reach the inbox. Below 90% indicates deliverability issues that need to be addressed.
How do you improve email deliverability?
Improve deliverability by: warming up new domains, limiting sending volume, verifying email addresses, avoiding spam triggers, monitoring deliverability metrics, and maintaining good sender reputation.
How do you check email deliverability?
Check deliverability using: email deliverability tools (Mail-Tester, GlockApps), monitoring delivery rate, open rate, and spam rate, and checking sender reputation using tools like Google Postmaster Tools and Microsoft SNDS.