Given that Gmail accounts for 80% of all email traffic, you can utilize Google Postmaster Tools (GPT) to examine your email performance and track deliverability concerns.
The Postmaster Dashboard is quite significant; here's what you can find on it:
A higher IP reputation means that emails sent from this IP are more likely to reach the inbox of the intended recipient rather than the spam folder. If you send a large volume of emails and users designate them as spam, your IP reputation will decline.
You should verify your sending list on a regular basis to reduce unfavorable user feedback. Make sure you're only sending emails to people who show an interest in receiving them.
Mail detected as spam by Gmail's Spam filter, as well as mail reported as spam by users, are included in the definitions of spam below.
- Bad: A track record of sending a lot of spam. This entity's mail will almost always be rejected or designated as spam at connection time.
- Low: This sender is known to send a large volume of spam on a regular basis, and mail from this sender is likely to be classed as spam.
- Medium/Fair: Known for sending decent mail, but has also sent a small amount of spam on occasion. Unless there is a significant increase in spam levels, most of the email sent by this company will be delivered.
- High: Has a track record of sending relatively little spam and follows Gmail's sender guidelines. The spam filter will only label a small percentage of emails as spam.
Tip: Keep in mind that spam filtering relies on thousands of signals, one of which is IP reputation.
In comparison to all authenticated traffic, this graph shows what proportion of your total emails were rejected or momentarily failed. A list of reasons why an email failed can be found beneath the graph.
About Delivery Errors:
- Rate limit exceeded: Temporary rate limitations have been implemented because the domain or IP is delivering traffic at an unusually high rate.
- Suspected spam: Our systems suspect that the traffic is spam.It's possible that the email content is spammy: Because of the content, the traffic is suspected of being spammy.
- Bad or unsupported attachment: Gmail does not support attachments in traffic.
- Sending IP has a low reputation: The sender IP's reputation is really poor.
- DMARC policy of the sending domain: A DMARC rejection policy has been set up for the sender domain.
- Sending Domain has a low reputation: The sender domain's reputation is really low.
- IP is in one or more public RBLs: The IP is listed in one or more public Real-time Blackhole Lists (RBLs). Work with the RBL to get your IP de-listed.
- Domain is in one or more public RBLs: The Domain is listed in one or more public Real-time Blackhole Lists. Work with the RBL to get your domain delisted.
- Bad or missing PTR record: The sending IP is missing a PTR record.
- Feedback Loop: If you're a large sender, the FeedBack Loop (FBL) can help you figure out which campaigns in your traffic are generating a lot of complaints from Gmail users. The FBL is especially beneficial for ESPs in detecting service misuse.
- Authentication: Over all received traffic that tried authentication, this dashboard provides the percentage of your emails that passed SPF, DKIM, and DMARC.
About SPF, DKIM, & DMARC graphs:
- SPF graph: Shows percentage of mail that passed SPF vs all mail from that domain that attempted SPF. This excludes any spoofed mail.
- DKIM graph: Shows percentage of mail that passed DKIM vs all mail from that domain that attempted DKIM.
- DMARC graph: Shows percentage of mail that passed DMARC alignment vs all mail received from the domain that passed either SPF or DKIM.
- Encryption: This dashboard shows what percentage of your inbound and outbound traffic is encrypted.
About TLS inbound & outbound graphs (Transport Security Layer):
- TLS Inbound: Shows percentage of incoming mail (to Gmail) that passed TLS vs all mail received from that domain.
- TLS Outbound: Shows percentage of outgoing mail (from Gmail) that was accepted over TLS vs all mail sent to that domain.
Note: Please contact our customer service team to activate this. It is exclusively available to our enterprise customers.
Updated over 2 years ago