[Akonadi] [Bug 387926] Release version 17.12: Sending a mail with SMTP fails with: org.kde.pim.ksmtp: Socket error: 1

[Fabian Vogt]

https://bugs.kde.org/show_bug.cgi?id=387926

--- Comment #30 from Fabian Vogt <fabian at ritter-vogt.de> ---
(In reply to kzi from comment #28)
> I can confirm the issue on Tumbleweed, KMail 5.7.0, server mail.snafu.de
> port 25 or 587. Encryption 'None' or TLS results in Socket error: 2, while
> SSL gives Socket error: 9. TLS/25/PLAIN is autodetected. Provider says 'SSL'
> (but probably means TLS) and above ports.
> 
> The ksmtp patch 17.12.0-3-1 rolled out today noon UTC:
> - Add patch to fix sending of emails over SSL (without STARTTLS):
>   * 0001-Fix-duplicate-authentication.patch
>   * Fixes kde#388068, kde#387926 and boo#1073975
> 
> does ***NOT*** fix this issue for me.

It is indeed a different issue, but it's fairly simple: ksmtp sends the
server's hostname instead of the local hostname by accident with the "EHLO"
command.
The mail.snafu.de server rejects that immediately, but example.com works.

Please try this workaround to confirm: In the account configuration dialog, in
the "advanced" tab, enter "example.com" as "Send custom hostname to server".

Please open a new bug report for that.

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