Bug#921821: exim4: fails to send mail, timeout reached or host closed connection

[Andreas Metzler]

On 2019-02-09 Lev Lamberov <dogsleg at debian.org> wrote:
> Package: exim4
> Version: 4.92~RC5-1
> Severity: important

> Dear Maintainer,

> I had fully working exim4, but after some update (I'm not sure which
> one, but the problem arose few days ago) I started to get Connection
> timed out error, say:

> 2019-02-09 10:59:18 1gsLfa-0006zu-QT <= dogsleg at riseup.net U=dogsleg P=local S=3591
> 2019-02-09 11:04:19 1gsLfa-0006zu-QT H=mail.riseup.net [198.252.153.22]: SMTP timeout after initial connection: Connection timed out
[...]
> dc_smarthost='mail.riseup.net::465'

Hello,

Port 465 is ssmtp. Have you (still) changed/set protocol for the
remote_smtp_smarthost transport? - Perhaps you simply accepted the new
distributed conffile without re-appliying this local modification?

Alternatively the smarthost offers STARTTLS on port 587 which would
avoid the need for additionally configuration.

cu Andreas
-- 
`What a good friend you are to him, Dr. Maturin. His other friends are
so grateful to you.'
`I sew his ears on from time to time, sure'