Here in the unsubscribes and bounces archives you'll find the blog posts we've written about the unsubscribe process and bounce handling.
You may also be interested in our pages on GMass's unsubscribe management and bounce management features — see how GMass takes the burden off your hands and makes sure you only send to working email addresses belonging to people who want your emails.
September 6, 2023
How to Get Around Mimecast Blocks
Is Mimecast blocking the emails you're sending? Here are steps you can take to get around Mimecast blocks so your emails make it to the inbox properly.
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August 30, 2023
New in GMass: Instant Reply and Bounce Detection
GMass can now detect when someone replies to your campaign or when one of your message bounces the moment it happens — no more delays!
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September 15, 2022
Email Bounce Codes: The Complete Guide (Definitions, Solutions, and More)
A glossary of email bounce codes to help you understand why your emails weren't delivered. Plus steps and strategies to manage and to cut down on bounces.
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June 16, 2022
List-Unsubscribe Header: What It Is and How to Implement it in GMass
Understand the list-unsubscribe header, who should use it to add easier unsubscribe links in email clients, and how to enable it in GMass.
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May 22, 2018
How to Unsubscribe a Domain
How to unsubscribe an entire domain in GMass. Also how to resubscribe an entire domain or download a CSV with your unsubscribes.
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November 23, 2017
Gmail’s 69585 bounces and what they mean
A Gmail 69585 bounce is a type of block indicating that Google preemptively filtered your email before it ever reached the recipient's server.
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May 3, 2017
Advanced Bounce Handling
You now have more control over your account’s bounce list and how bounces are handled for your account. GMass’s reply …
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November 16, 2016
How to Remove Recipients from an Individual Campaign
How to suppress recipients for individual campaigns by building suppression lists from prior campaigns, or via manually entering domains and emails.
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September 9, 2016
Manually Import or Remove Unsubscribe Addresses and the GMass Unsubscribe Features
How to use GMass's unsubscribe management features to add or remove addresses from your unsubscribe list. (Plus more unsubscribe features in GMass.)
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July 14, 2016
Yahoo bouncing emails sent by select GMass users
Several users have reported that in the last few days, sending to yahoo.com email addresses, and email addresses hosted by …
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June 13, 2016
Did your Google account get suspended or did Gmail bounce your emails?
With a recent increase in GMass’s popularity has come an increased number of reports of Google accounts getting suspended after …
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May 14, 2016
How to handle this strange Gmail bounce: “read error: generic::failed_precondition”
Several users have recently reported seeing bounce backs from Gmail that look like this: Delivery to the following recipient failed …
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