Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

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Receiving message "e-mail not sent. Cannot connect to SMTP server 47.43.26.4 (47.43.26.4:587) connect error 10060"

jlbest

Having issues sending e-mails due to message: "e-mail not sent. Cannot connect to SMTP server 47.43.26.4 (47.43.26.4:587) connect error 10060" Requires 2-6 attempts to send. Also, problems with sending attached files, claiming to be too large.

Having issues sending e-mails due to message: "e-mail not sent. Cannot connect to SMTP server 47.43.26.4 (47.43.26.4:587) connect error 10060" Requires 2-6 attempts to send. Also, problems with sending attached files, claiming to be too large.

Alle antwurden (1)

- What version of Thunderbird?

- What is your operating system?

- Who is your email provider?

- Is this an IMAP account or POP3?

- What Anti-Virus, other security software, or VPN do you use, if any?

The "connect error 10060" often indicates incorrect SMTP settings. Please confirm that yours matches your email provider's recommended settings.

In fraach stelle

Jo moatte jo oanmelde by jo account om op berjochten te antwurdzjen. Stel in nije fraach as jo noch gjin account hawwe.