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Why Doesn’t Blocking Senders in Gmail Stop Those Pesky Emails?

Receiving unwanted emails or texts is a common annoyance, and many Gmail users find themselves frustrated when attempting to block senders, only to discover that the emails keep arriving, often diverted to the spam folder. Despite Gmail’s “block” feature, these messages persist, leaving users feeling powerless. This article explores why blocking senders in Gmail often doesn’t stop emails entirely, why they’re only moved to spam, and what you can do about it.

How Gmail’s Block Feature Works

When you block a sender in Gmail, the system doesn’t outright reject their emails. Instead, it automatically redirects future messages from that sender to your spam folder. This is by design, as Gmail aims to balance user control with the risk of accidentally blocking legitimate emails. By moving blocked emails to spam rather than deleting them, Gmail allows you to review them in case of false positives, such as emails from legitimate companies or contacts that might end up in spam by mistake. click here

Why Blocking Doesn’t Stop Emails

There are several reasons why blocking a sender in Gmail doesn’t fully prevent their emails from reaching you:

Spammer Tactics: Spammers and scammers often use tactics like changing email addresses or domains slightly for each message (e.g., adding numbers or letters). This makes it difficult for Gmail’s filters to recognise them as the same sender, rendering the block ineffective.
Gmail’s Design Choice: Gmail’s blocking mechanism is intentionally conservative to avoid permanently deleting important emails. For example, if you block an ex-partner or a company, Gmail sends their messages to spam rather than deleting them to ensure you don’t miss critical communications. This can feel frustrating when you want the emails to stop entirely.
Delayed Effect: It can take a few days for Gmail’s block to fully take effect, meaning you might still see emails from a blocked sender in your spam folder during this period.
Shared IP or Domain Issues: Some emails come from services like Constant Contact, which use shared domains or IPs. Even if you block one sender, others using the same service might still get through due to whitelisting or shared reputation.

Why Gmail Only Moves to Spam

Gmail’s spam folder acts as a safety net. When you mark an email as spam or block a sender, Gmail uses this feedback to train its filters, but it doesn’t immediately reject all emails from that sender. This is because spammers can spoof addresses, and outright rejection could risk losing legitimate emails. By moving messages to spam, Gmail allows its algorithms to analyse patterns and improve filtering over time. However, this means persistent spammers may still reach your spam folder, especially if they use new addresses or domains.

Technical and Policy Limitations

Gmail’s infrastructure doesn’t allow for outright blocking in the way some users expect. For instance, emails from bulk senders (those sending over 5,000 emails daily) must meet strict authentication protocols like SPF, DKIM, and DMARC. If these are misconfigured, emails may still slip through to spam rather than being rejected. Additionally, Gmail avoids permanent rejection to comply with email standards and prevent accidental data loss. This conservative approach can feel like a limitation when you’re dealing with relentless spam.

What Can You Do About It?

While Gmail’s block feature has limitations, there are steps you can take to better manage unwanted emails:

Create Custom Filters: Instead of relying on the block button, set up a filter to automatically delete emails from specific senders or domains. Go to Gmail’s settings, select “Filters and Blocked Addresses,” and create a filter to delete messages matching certain criteria (e.g., from a specific address or containing specific words).
Unsubscribe Where Possible: For marketing emails, use the unsubscribe link if it’s from a legitimate sender. Be cautious with suspicious links, as scammers may use fake unsubscribe options to confirm active email addresses.
Report Spam and Phishing: Marking emails as spam or reporting phishing helps Gmail’s algorithms learn to filter similar messages. However, this may not stop all emails, especially from persistent spammers.
Use Third-Party Tools: Tools like Clean Email or browser extensions (e.g., Block Sender for Gmail) can offer more robust blocking options, such as mass unsubscribing or filtering based on specific criteria like attachments or email size.
Check Sender Reputation: If you’re a sender struggling with deliverability, ensure your domain is authenticated with SPF, DKIM, and DMARC to avoid being flagged as spam. Tools like Google Postmaster can help monitor your sender reputation.

Dealing with Texts

For unwanted texts, the issue is similar: many come from shortcodes or virtual numbers that don’t accept replies. On Android or iOS, you can block numbers, but new ones may be used by spammers. Marking texts as spam or using carrier-level blocking (e.g., reporting to your mobile network) can help, but results vary. Some apps, like Google Messages, allow filtering unknown senders, but persistent spammers may still bypass these measures.

Why It Feels Like a Losing Battle

Spammers and bulk senders are engaged in a constant cat-and-mouse game with email providers like Gmail. They adapt by using new domains, IPs, or spoofing techniques, making it hard for filters to keep up. Gmail’s cautious approach prioritises not losing legitimate emails, which can leave users feeling like the block feature is ineffective. Social media posts on platforms like X echo this frustration, with users complaining about blocked senders still reaching their spam folders.

Conclusion

Gmail’s block feature is designed to move unwanted emails to the spam folder rather than fully rejecting them, a choice rooted in caution to avoid losing important messages. While this can be frustrating, especially with persistent spammers who use evasive tactics, you can take control by creating custom filters, unsubscribing from legitimate senders, or using third-party tools. For texts, carrier-level blocking or app filters can help, though they face similar challenges. By understanding Gmail’s limitations and exploring alternative solutions, you can better manage your inbox and reduce the clutter of unwanted messages.