Delivery Issues - Gmail
Don't panic. Delivery issues happen, and oftentimes are temporary. Here's what you can do to troubleshoot with Gmail.
What happened?
Delivery issues can be caused by any combination of the following factors:
- Block on your IP address
- High Spam complaints
- Content flagged as Spammy
- Temporary Issues
What do I do?
Normally, the first step is to determine whether there is a block. Gmail does not actually block IP addresses, so there's nothing to check.
If there is a block
It looks like there may be a delivery issue with Gmail. Gmail does no block IP addresses, but they will send your message to the Spam folder if they feel it doesn’t meet their standards. To make sure you are compliant, review their standards. If there is a consistent problem, you can submit a copy of your header message in this form.
You aren't done yet. The ISP will block you again if you continue to present the same issues. Learn more about what may have caused the block and what you need to do right away to ensure it doesn't happen again.
If there isn't a block
This usually means there was a temporary block due to any of the reasons listed above. ISPs may temporarily place your email in the Bulk/Spam folder if their systems found the content Spammy. Similarly, if too many Spam complaints are entering their system, they may bulk your campaign. Also, if your IP has a new, or not so great reputation, the ISP may have found you not qualified to reach the Inbox. In our article about IP Reputation, you can learn more about the specific issues and ways to improve.
It's also possible that the content of a recent campaign was flagged, but the next gets through fine. Use this information to learn about how ISPs review your content. Compare the two campaigns and see if there are differences (spammy words, large images, broken links).
One last thing to note Technical issues do happen, even to ISPs. There may have been some mistake that caused your emails to end up in Bulk/Spam. It may also be an issue with Mailbox Monitor. If you feel like Mailbox Monitor was having issues when you made your purchase, let us know.