1. What I Learned from Sending 1,000 Emails – VizLeads

A personal breakdown of what worked and what didn’t when sending 1,000 emails:

  • Personalizing subject lines increased open rates
  • Using curiosity and short lines boosted engagement
  • Plain-text emails often outperform HTML
  • Best times to send: Tuesday to Thursday mornings
    🔗 Read here

2. 12 Powerful Email Marketing Tips – Search Engine Journal

A solid guide for improving email campaigns, especially at scale:

  • List segmentation
  • Welcome email series
  • Mobile-friendly designs
  • A/B testing for better results
    🔗 Read here

3. 30 Email Marketing Tips to Increase Opens, Clicks & Conversions – Hostinger

Covers modern strategies for sending large-scale email campaigns:

  • Clean and verified email lists
  • Strong sender reputation
  • Email authentication (SPF, DKIM, DMARC)
  • Personalization at scale
    🔗 Read here

4. 33 Email Marketing Best Practices – Zapier

This one focuses on optimizing delivery, engagement, and avoiding spam filters:

  • Use of verified domains
  • Double opt-in
  • Smart segmentation
  • Avoiding “spammy” words
    🔗 Read here

5. Bulk Email Tips – Unlayer

Perfect if you’re sending emails in bulk (1,000+ at once):

  • Avoid using free email domains (like Gmail)
  • Always include unsubscribe options
  • Clean lists regularly
  • Choose the right email service provider (ESP)
    🔗 Read here

6. 7 Bloggers Share Email Marketing Advice – EmailOctopus

Real tips from professional bloggers:

  • Don’t over-send
  • Keep mobile users in mind
  • Build trust through consistent tone and timing
    🔗 Read here

7. Best Practices for Sending Better Emails – Kinsta

Especially useful for bulk emails and improving sender reputation:

  • Email brevity = higher engagement
  • Avoid spam-trigger keywords
  • Use branded sending addresses
  • Optimize your CTAs (calls-to-action)
    🔗 Read here

✅ Summary Table

Blog SourceMain Focus Areas
VizLeadsA/B testing, timing, personalization, plain vs HTML
Search Engine JournalGeneral tips: segmentation, mobile, welcome flows
HostingerClean lists, authentication, personalization
ZapierSpam avoidance, double opt-in, optimization
UnlayerBulk sending techniques, legal compliance
EmailOctopusBlogger insights, trust, engagement tactics
KinstaEmail design, deliverability, CTA strategy