User postfix instance to send emails

[VladyslavKurmaz]

Prerequisites

1. Use postfix instance inside cluster, define next properties inside .env

EMAIL_SERVER_DOMAIN=smtp.example.com
EMAIL_SERVER_PORT=25
EMAIL_SERVER_USER=user
EMAIL_SERVER_PASSWORD=password

2. Run cluster ./up.sh

Expected behaviour

1. No error(s) in log
2. Email is sent during registration

Actual behavior

1. Front-end shows no error(s)
2. Error(s) in log

static_1    | 176.241.139.47 - - [19/Aug/2017:10:07:39 +0000] "POST /api/reg/ HTTP/1.1" 200 0 "https://95.85.56.80/" "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36" "-"
server_1    | 170819-10:07:47.893 [EmailQueue:172] fail to send email
server_1    | javax.mail.MessagingException: Could not convert socket to TLS
server_1    |   at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1999)
server_1    |   at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:709)
server_1    |   at javax.mail.Service.connect(Service.java:364)
server_1    |   at javax.mail.Service.connect(Service.java:245)
server_1    |   at ua.papka24.server.api.helper.EmailQueueConsumer.sendEmails(EmailQueueConsumer.java:106)
server_1    |   at ua.papka24.server.api.helper.EmailQueueConsumer.run(EmailQueueConsumer.java:182)
server_1    |   at java.lang.Thread.run(Thread.java:748)
server_1    | Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
server_1    |   at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
server_1    |   at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1959)
server_1    |   at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)
server_1    |   at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)
server_1    |   at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1514)
server_1    |   at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)
server_1    |   at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1026)
server_1    |   at sun.security.ssl.Handshaker.process_record(Handshaker.java:961)
server_1    |   at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072)
server_1    |   at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385)
server_1    |   at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413)
server_1    |   at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1397)
server_1    |   at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:543)
server_1    |   at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:480)
server_1    |   at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:1994)
server_1    |   ... 6 common frames omitted
server_1    | Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

[wooddy]

#30 по работе с postfix

по калбеку от почтовика (не корректное отображение Майже все готово!) сложнее - письмо помещаются в очередь (по идее будет доставленно как только будет доступен почтовый сервер).
отправлять письма может не та же нода которая приняла запрос.