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Date: Fri, 3 Sep 2021 13:29:47 -0700 (PDT)
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Subject: Re: Attempt to send email using AWS results in Socket closed by peer
From: Juan Rayas <juan.m.rayas@gmail.com>
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On Friday, September 3, 2021 at 12:33:19 PM UTC-7, Doctor Who wrote:
> On Fri, 3 Sep 2021 11:11:41 -0700 (PDT), Juan Rayas=20
> <juan.m...@gmail.com> wrote:=20
>=20
> >On Friday, September 3, 2021 at 1:59:33 AM UTC-7, Doctor Who wrote:=20
> >> On Fri, 3 Sep 2021 09:32:27 +0200, "Dmitry A. Kazakov"=20
> >> <mai...@dmitry-kazakov.de> wrote:=20
> >>=20
> >> >On 2021-09-03 00:19, Randy Brukardt wrote:=20
> >> >> "Dmitry A. Kazakov" <mai...@dmitry-kazakov.de> wrote in message=20
> >> >> news:sgol48$r20$1...@gioia.aioe.org...=20
> >> >> ...=20
> >> >>> Most mail servers do not accept unencrypted connections.=20
> >> >>=20
> >> >> That's news to me, as my mail server (you know, the one that runs=
=20
> >> >> Ada-Comment and the other ARG lists) doesn't support encrypted conn=
ections.=20
> >> >> I don't have any problem sending to GMail (I send copies of most of=
 my=20
> >> >> personal mail there). Something else must be wrong.=20
> >> >=20
> >> >The question is with what settings. There are hundreds of combination=
s=20
> >> >of Port x unencrypted|StartTLS|TLS x authentication method.=20
> >> >=20
> >> >The port 465 was intended for TLS, then it was depreciated. Then they=
=20
> >> >introduced other ports. Legacy mail servers pissed that all on etc.=
=20
> >> >=20
> >> > From experience, getting a SMTP client working is real pain.=20
> >> he is better off using his own provider's mail server on port 25, it=
=20
> >> will accept username/password as authentication.=20
> >Hi all,=20
> >=20
> > thank you for your comments and responses.=20
> >=20
> >I tried changing the port number to 25, using the default port number in=
 the SMTP.Client.Initialize procedure, and using other port numbers such as=
 587. I even tried just initializing the SMT server and sending the email (=
without authentication) as indicated in https://docs.adacore.com/aws-docs/a=
ws/working_with_mails.html.=20
> >=20
> >In all cases, I get the following error:=20
> >=20
> >Can't send message :530 5.7.0 Must issue a STARTTLS command first. u7sm5=
705829pju.13 - gsmtp=20
> >=20
> >The problem is I don't know how to send the STARTTLS command with AWS. A=
nyone know how?=20
> >=20
> >My past experience was mostly with real-time embedded systems, so I don'=
t have a lot of experience with email servers. I didn't expect this to be s=
o difficult. Since this was mostly a toy to learn Ada, I may move on to oth=
er aspects of Ada for now.=20
> >=20
> >Thanks for all your comments.=20
> >--Juan
> you have to change mail server:
> Isp :=3D=20
> SMTP.Client.Initialize=20
> ("smtp.gmail.com", Port =3D> 465,=20
> Credential =3D> Auth'Unchecked_Access);
> don't use gmail, use your provider mail server ...
Hi all,

 I changed the SMTP server to my ISP server (instead of Gmail), and changed=
 the port back to 25. This worked!!

Thanks for your help and suggestions. Now on to learning other aspects of A=
da.

--Juan