Hi all,
Find the logs. I am still learning postfix and therefore cannot figure out
the problems. Kindly assist:
Do you wish to issue a Let's encrypt certificate for this domain? [y/N] y
aosars.com is inaccessible, please verify!
root@aosars:~# echo "Test Email message body" | mail -s "Email test
subject" aos
arsafrica.com
root@aosars:~# sudo tail /var/log/mail.log
Mar 24 20:08:18 aosars postfix/smtp[4277]: warning: relayhost configuration
problem
Mar 24 20:08:18 aosars postfix/smtp[4277]: 3ABE9E221A: to=,
relay=none, delay=25676, delays=25676/0.03/0/0, dsn=4.3.5,
status=deferred (Host or domain name not found. Name service error for name=
smtp.example.com type=: Host not found)
Mar 24 20:10:16 aosars postfix/pickup[4117]: F15DCE2316: uid=0 from=<
r...@aosars.com>
Mar 24 20:10:16 aosars postfix/cleanup[4420]: F15DCE2316:
message-id=<2023032420
1016.f15dce2...@aosars.com>
Mar 24 20:10:16 aosars postfix/qmgr[1218]: F15DCE2316: from=,
s
ize=357, nrcpt=1 (queue active)
Mar 24 20:10:17 aosars postfix/smtp[4422]: cannot load Certification
Authority d
ata, CAfile="/etc/postfix/cacert.pem",
CApath="/etc/ssl/certs": disabling TLS su
pport
Mar 24 20:10:17 aosars postfix/smtp[4422]: warning: TLS library problem:
error:0
4800066:PEM routines::bad end
line:../crypto/pem/pem_lib.c:875:
Mar 24 20:10:17 aosars postfix/smtp[4422]: warning: TLS library problem:
error:0
5880009:x509 certificate routines::PEM
lib:../crypto/x509/by_file.c:234:
Mar 24 20:10:17 aosars postfix/smtp[4422]: warning: relayhost configuration
prob
lem
Mar 24 20:10:17 aosars postfix/smtp[4422]: F15DCE2316:
to=, orig_to=,
relay=none, delay=0.03, delays=0.01/0.01
/0/0, dsn=4.3.5,
status=deferred (Host or domain name not found. Name service er
ror for name=smtp.example.com type=: Host not found)
On Fri, 24 Mar 2023 at 16:56, Ralf Hildebrandt via Postfix-users <
postfix-users@postfix.org> wrote:
> * Aosars Repository via Postfix-users :
> > Hi all,
> > I have installed postfix on Ubuntu server 22 and configured to use gmail
> > smtp.But it fails to send mails.
>
> The log should inform you why it's failing.
>
> I have a config snippet here:
>
> main.cf:
>
> smtp_use_tls=yes
>
> relayhost = smtp.gmail.com:587
> # we want to relay all mails via smtp.gmail.com (port 587)
>
> smtp_sasl_auth_enable = yes
> # we need username password for that
>
> smtp_sasl_password_maps = hash:/etc/postfix/sasl_password_maps
> # username password are stored in /etc/postfix/sasl_password_maps
>
> /etc/postfix/sasl_password_maps contains:
>
> smtp.gmail.com
> my-gmail-addr...@gmail.com:theapplicationspecificpasswordforthisserver
>
> --
> Ralf Hildebrandt
> Geschäftsbereich IT | Abteilung Netzwerk
> Charité - Universitätsmedizin Berlin
> Campus Benjamin Franklin
> Hindenburgdamm 30 | D-12203 Berlin
> Tel. +49 30 450 570 155 | Fax: +49 30 450 570 962
> ralf.hildebra...@charite.de | https://www.charite.de
>
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