Been in email for over a decade, and one thing remains true: respect the inbox!
Be transparent – Clear subject lines & sender names build trust.
Warm up new domains properly – Don’t just start blasting emails on day one.
Avoid “graymail” – If users aren’t engaging, suppress them before ISPs do it for you.
Always ask: Would I open this? – If the answer is no, it’s probably not a great email.

Mastering deliverability is a mix of tech and human behavior—balance both, and you’ll be golden!

There should really be an awesome knowledge base article to concatenate all these answers that get posted! 

Ooooh, love this convo! I’ve been running some fun tests lately, and here’s what’s working for me:
A/B testing different sender names – Sometimes, a friendly name vs. a company name makes a huge difference in open rates!
Plain text vs. HTML emails – Plain text often lands better in inboxes, especially for cold outreach.
Send-time optimization – Experimenting with different times based on engagement trends has been a game-changer.
Re-engagement automation – If someone hasn’t opened in a while, try a “We Miss You” email before removing them.

Always testing, always learning! Would love to hear what experiments others are running!

Great question! You’re spot on with SPF, DKIM, and list hygiene. I’d also add:
DMARC – Helps prevent spoofing and builds domain reputation.
Engagement-Based Sending – Prioritize active recipients and sunset disengaged users.
IP & Domain Warmup – If you’re ramping up sending volume, do it gradually.
Proper Authentication Alignment – Make sure your FROM domain matches your authentication settings to avoid mismatches.

Small tweaks can make a big difference!

Love this thread! Keeping it simple, here’s my golden rule for email deliverability: Send emails people actually want.

That said, here are my top non-negotiables:
Permission-based sending – No shady list purchases, ever.
Engagement matters – ISPs track opens, clicks, and replies. If people don’t care about your emails, neither will the inbox gods.
Clean your lists – High bounce rates = bad news for deliverability.
Less is more – Over-sending burns out your audience and your sender reputation.

If your emails are valuable, inbox placement becomes way easier. Quality > Quantity all day!

Oooh, my favourite topic! Here’s what’s worked for me:

• Avoid spammy words and phrases - words like “free”, “urgent” or lots of punctuation can trigger filters
• Use a custom return-path domain. Helps you boost sender reputation.
• Monitor blocklist - tools like MXToolbox can alert you if your domain has been flagged
• Set up BIMI! This displays your logo in the inbox, which helps with brand credibility.

I’m obsessed with tracking deliverability data!  Some key things I monitor:
 Inbox Placement Rates – Not just open rates, but where emails land (inbox vs. spam).
 Spam Complaint Rate – Keeping this below 0.1% is crucial.
 Engagement Segments – Filtering engaged users vs. dormant ones helps maintain a good reputation.
 Postmaster Tools – Google Postmaster & Microsoft SNDS give great insights into how ISPs view your domain.
Numbers don’t lie—data is your best friend in email deliverability!