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Thunderbird Fails to Send WP Mail: SMTP Timeout, Connection Issues, WP Port 465 SSL/TLS Settings

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  • #1 16706319
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    Hello.
    I have had a problem with Thunderbird for a week. He doesn't send me mail from Virtual Poland. I have a message:
    "The sending of the message failed because the connection to the outgoing mail (SMTP) smtp.wp.pl server has timed out. Please try again or contact your network administrator."
    I have all SMTP settings as WP, port 465, SSL, TSL, authentication method - normal password.
    Incoming mail is received correctly. I tried to reinstall Thunderbird but the problem is still ...
    Thanks in advance for any help!
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  • #3 16706668
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    I can't create an account. "They had" on the window checking the availability of the login already from 30 minutes. I tried to do it on Google Chrome and Mozilla.
  • #5 16706683
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    I attach files.
    Attachments:
    • FRST.txt (80.53 KB) You must be logged in to download this attachment.
    • Addition.txt (68.08 KB) You must be logged in to download this attachment.
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  • #6 16706710
    Kolobos
    IT specialist  
    Posts: 85152
    Help: 17159
    Rate: 10421
    Uninstall ESET Smart Security on the probe and check if it starts working.
  • #7 16707180
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    After uninstalling Eset, the problem persists. I don't send emails and I can't create an account.
  • #8 16707184
    Kolobos
    IT specialist  
    Posts: 85152
    Help: 17159
    Rate: 10421
    Is it working or not on other devices connected to the same link?

    It is possible that the provider has blocked something or just the wp.
  • #9 16707189
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    In fact, I have now realized that for a week I have a new Internet provider (Telekom) and this may be related to the whole embarrassment ... But what to do next with it?
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  • #10 16707191
    Kasek21
    Level 43  
    Posts: 45514
    Help: 4962
    Rate: 3503
    lufa9999 wrote:
    Just what to do next with this?

    Like what Contact your internet provider!
  • #11 16707195
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    Is there any possibility of settings in the router? Let me do it myself?
  • #12 16707208
    badboy84
    Level 43  
    Posts: 8749
    Help: 1197
    Rate: 1483
    If you have access to the router then check if the ports are blocked.
  • #13 16707230
    lufa9999
    Level 17  
    Posts: 1491
    Rate: 137
    That's exactly how it was! Thanks beautiful for your help, everything is going on!
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Topic summary

✨ The discussion revolves around a user experiencing SMTP timeout issues with Thunderbird while trying to send emails from Virtual Poland (WP). The user has configured the SMTP settings correctly, using port 465 with SSL/TLS, but encounters a timeout error. After troubleshooting steps, including reinstalling Thunderbird and uninstalling ESET Smart Security, the user discovers that the problem may be linked to a recent change in their internet provider to Telekom. Suggestions include checking for blocked ports on the router and contacting the internet provider for assistance. Ultimately, the user resolves the issue by identifying and unblocking the necessary ports.
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FAQ

TL;DR: Thunderbird SMTP timeouts to WP had 1 root cause: a router blocked port 465; "check if the ports are blocked" solved it. Keep SSL/TLS and normal password, or ask your ISP to unblock. [Elektroda, badboy84, post #16707208]

Why it matters: This FAQ helps Thunderbird users fix WP Mail send failures caused by port 465/SSL/TLS connectivity or ISP/router blocks.

Quick Facts

How do I fix Thunderbird SMTP timeout errors when sending via WP?

Keep WP settings (smtp.wp.pl, port 465, SSL/TLS, normal password). Then remove router blocks on outgoing SMTP and test again. If needed, ask your ISP to lift any SMTP restrictions. After unblocking the router, sending worked immediately for the poster. [Elektroda, lufa9999, post #16707230]

What are the correct SMTP settings for WP Mail in Thunderbird?

Use server: smtp.wp.pl. Set port: 465. Enable SSL/TLS. Authentication method: Normal password. These settings received mail correctly, but sending failed until networking was fixed. They remain the baseline to configure before troubleshooting connectivity. [Elektroda, lufa9999, post #16706319]

Could my ISP be blocking WP’s SMTP and causing timeouts?

Yes. An experienced responder noted the provider may block access to WP or SMTP. This can cause send failures while everything else appears normal. If unblocking the router doesn’t help, contact the ISP to request SMTP allowance on your line. [Elektroda, Kolobos, post #16707184]

How can I quickly test whether my network is at fault?

Try sending from another device or network on the same connection. If all devices fail, suspect ISP or router blocking. If another network works, the fault is your local link. This isolates the issue before deeper client changes. [Elektroda, Kolobos, post #16707184]

How do I check if my router blocks port 465 (SSL/TLS SMTP)?

Look for firewall, parental control, or outbound filtering rules in your router. Allow outbound TCP 465 (and related SMTP ports if present). Save and reboot the router, then test sending. "Check if the ports are blocked" was the winning hint here. [Elektroda, badboy84, post #16707208]

Does uninstalling antivirus (like ESET) fix this SMTP timeout?

Not necessarily. The user removed ESET Smart Security, but the timeout persisted. This shows the failure was network-level, not client antivirus. Focus on router and ISP checks before extensive reinstalls. [Elektroda, lufa9999, post #16707180]

Why can I receive mail but not send with WP in Thunderbird?

Receiving uses inbound protocols (POP/IMAP) that were unaffected. Sending uses SMTP over port 465, which was blocked. That asymmetry explains successful downloads but failed uploads. Unblocking the router restored send while receive was always fine. [Elektroda, lufa9999, post #16706319]

I can’t create a WP account—the availability check hangs. What should I do?

Treat it as a connectivity block. The same network that timed out SMTP also stalled the account flow. Fix the router/ISP blocks first, then retry the sign-up page. Network-side constraints can freeze such checks. [Elektroda, lufa9999, post #16706668]

What should I ask my ISP when I call?

Describe repeated SMTP timeouts to smtp.wp.pl on port 465 with SSL/TLS. Request removal of any outbound SMTP blocks. As one helper put it: "Contact your internet provider!" Keep a brief log of failed attempts. [Elektroda, Kasek21, post #16707191]

Is there a simple 3-step process to restore sending?

  1. Confirm Thunderbird uses smtp.wp.pl:465 with SSL/TLS and normal password.
  2. Log into your router; remove outbound blocks on TCP 465; reboot it.
  3. If still failing, call the ISP to unblock SMTP on your line. [Elektroda, badboy84, post #16707208]

How long did the issue last after switching providers?

About one week. The poster noted the problems started after changing to a new provider for roughly that period. This timing is a strong clue for ISP or router policy changes affecting SMTP. [Elektroda, lufa9999, post #16707189]

What is FRST and why was it requested here?

FRST (Farbar Recovery Scan Tool) gathers diagnostic logs for Windows troubleshooting. A helper asked for FRST logs to rule out system-level issues. In this case, the root cause was network blocking, not malware or OS faults. [Elektroda, Kolobos, post #16706670]

What’s an edge case to watch for during troubleshooting?

Antivirus removal alone may not help. In the thread, uninstalling ESET did nothing because the block lived in the router/ISP path. Always verify network routes before reinstalling mail clients. [Elektroda, lufa9999, post #16707180]

Can a quick settings change alone solve this?

If your settings already match WP’s requirements, client tweaks rarely help. The resolution came from unblocking ports, not changing Thunderbird fields. Fix the path first; settings are already correct. [Elektroda, lufa9999, post #16707230]

Where can I find WP’s official SMTP guidance?

A helper shared WP’s support reference during the thread. Review it to confirm server name, port, and security mode before network tests. Keep it handy when speaking with your ISP. [Elektroda, Kasek21, post #16706377]
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