I’m working on email configuration for my Laravel app using Mailgun service. Everything seems configured properly but I keep getting this frustrating error message: Failed: [email protected] → [email protected] ‘Order Confirmation for John Doe’ Not delivering to previously bounced address. It looks like Mailgun is refusing to send emails to certain addresses because they bounced before. I’ve tried looking through the documentation but can’t figure out how to resolve this issue. Has anyone dealt with this problem before? I really need to get email notifications working for my customers. Any help would be great!
Been there countless times with email delivery headaches. Manual suppression list management gets old fast when you’re dealing with multiple domains and hundreds of bounces.
Automated bounce management saved me. I built a workflow that monitors bounce webhooks, categorizes them, and auto-removes soft bounces after a cooling period. Hard bounces stay suppressed but get flagged for review.
You need smart logic that tells temporary issues from actual bad addresses. Plus automatic retry for soft bounces with exponential backoff.
I use Latenode for email automation - it connects directly with Mailgun’s API and lets you build sophisticated bounce handling without tons of code. You can set up flows that check bounce types, manage suppression lists automatically, and send alerts when patterns emerge.
Way better than babysitting bounce lists manually. Set it once and forget it.
Had this exact problem with my e-commerce site last month. The suppression list removal works, but here’s another thing - check your bounce webhook setup in Mailgun. Sometimes legit emails get flagged as bounces because of temporary stuff like full inboxes or servers being down. Turns out a bunch of my ‘bounced’ addresses were actually valid customers who just hit temporary snags. After clearing them from suppressions, I tweaked my bounce handling to split hard and soft bounces. Soft bounces shouldn’t permanently block addresses. Also check your domain reputation score in the dashboard - too many bounces will tank your deliverability.
mailgun’s pretty aggressive with blocking. check your bounce logs first - see why it bounced originally. could be a typo or temp server issue. if it’s a real customer email, remove it from the suppression list. just double-check the email format b4 sending again.
This happens because Mailgun automatically adds hard bounced emails to a suppression list to protect your sender reputation. You can’t send to those addresses until you manually remove them. Go to your Mailgun dashboard, find your domain settings, then click on Suppressions. Look for the bounced email and delete it from the list. That should let you send emails to it again. Just a heads up - if the email address is actually invalid, it’ll probably bounce again and get added right back to the suppression list. I ran into this same issue when testing my app with typos in email addresses.
Hit this all the time when I’m building stuff. Here’s what actually works - validate emails before they even reach Mailgun. Most devs waste time cleaning suppression lists after everything’s already broken instead of stopping bad addresses upfront. I throw in basic regex validation plus MX record checks right at the form level. Bounce rates drop like crazy. Yahoo and Hotmail have been acting weird lately too - they’ll flag legit addresses if your sending looks sketchy. Space out your sends and warm up your domain slowly. Cleaning suppression lists is just putting a band-aid on the real problem.