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Mail Task + Notifications not working in APS

shmalik

Hello,

I am using Alfresco Process Services 1.11.1 Trial Version and have problems configuring the mail task. I already looked up similar questions in this forum, but unfortunately, I cannot solve my problem. I can neither receive mails via the mail task nor receive notifications to a user from the system.

My mail settings in the file activiti-app.properties are:

email.enabled=true

email.host=smtp.gmail.com

email.port=587

email.tls=true

email.useCredentials=true

email.username=mail@mail.com

email.password=mailpw

## The base url that will be used to create urls in emails.

email.base.url=http://localhost:8080/activiti-app

email.from.default=no-reply@activiti.alfresco.com

email.from.default.name=Activiti

email.feedback.default=activiti@alfresco.com

In the logs I get following erros after starting a simple mail task process (shortened due to character limit):

12:38:32 [http-nio-8080-exec-1] ERROR org.activiti.engine.impl.interceptor.CommandContext  - Error while closing command context
org.activiti.engine.ActivitiException: Could not send e-mail in execution 25001
[...]
Caused by: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.gmail.com:587
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1469)
        at org.apache.commons.mail.Email.send(Email.java:1496)
        at org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior.execute(MailActivityBehavior.java:102)
        ... 207 common frames omitted
Caused by: javax.mail.MessagingException: Could not convert socket to TLS
        at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2064)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:724)
        at javax.mail.Service.connect(Service.java:388)
        at javax.mail.Service.connect(Service.java:246)
        at javax.mail.Service.connect(Service.java:195)
        at javax.mail.Transport.send0(Transport.java:254)
        at javax.mail.Transport.send(Transport.java:124)
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1459)
        ... 209 common frames omitted
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
        at sun.security.ssl.Alerts.getSSLException(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
        at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
        at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
        at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
        at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
        at sun.security.ssl.Handshaker.processLoop(Unknown Source)
        at sun.security.ssl.Handshaker.process_record(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
        at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:598)
        at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:525)
        at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2059)
        ... 216 common frames omitted
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
        at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
        at sun.security.validator.Validator.validate(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
        ... 227 common frames omitted
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
        at java.security.cert.CertPathBuilder.build(Unknown Source)
        ... 233 common frames omitted
12:38:32 [http-nio-8080-exec-1] ERROR com.activiti.rest.exception.RestExceptionHandlerAdvice  - Internal error:
org.activiti.engine.ActivitiException: Could not send e-mail in execution 25001
[...]
Caused by: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.gmail.com:587
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1469)
        at org.apache.commons.mail.Email.send(Email.java:1496)
        at org.activiti.engine.impl.bpmn.behavior.MailActivityBehavior.execute(MailActivityBehavior.java:102)
        ... 207 common frames omitted
Caused by: javax.mail.MessagingException: Could not convert socket to TLS
        at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2064)
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:724)
        at javax.mail.Service.connect(Service.java:388)
        at javax.mail.Service.connect(Service.java:246)
        at javax.mail.Service.connect(Service.java:195)
        at javax.mail.Transport.send0(Transport.java:254)
        at javax.mail.Transport.send(Transport.java:124)
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1459)
        ... 209 common frames omitted
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
        at sun.security.ssl.Alerts.getSSLException(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.fatal(Unknown Source)
        at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
        at sun.security.ssl.Handshaker.fatalSE(Unknown Source)
        at sun.security.ssl.ClientHandshaker.serverCertificate(Unknown Source)
        at sun.security.ssl.ClientHandshaker.processMessage(Unknown Source)
        at sun.security.ssl.Handshaker.processLoop(Unknown Source)
        at sun.security.ssl.Handshaker.process_record(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.readRecord(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
        at sun.security.ssl.SSLSocketImpl.startHandshake(Unknown Source)
        at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:598)
        at com.sun.mail.util.SocketFetcher.startTLS(SocketFetcher.java:525)
        at com.sun.mail.smtp.SMTPTransport.startTLS(SMTPTransport.java:2059)
        ... 216 common frames omitted
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.validator.PKIXValidator.doBuild(Unknown Source)
        at sun.security.validator.PKIXValidator.engineValidate(Unknown Source)
        at sun.security.validator.Validator.validate(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.validate(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(Unknown Source)
        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source)
        ... 227 common frames omitted
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
        at sun.security.provider.certpath.SunCertPathBuilder.build(Unknown Source)
        at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source)
        at java.security.cert.CertPathBuilder.build(Unknown Source)
        ... 233 common frames omitted

Any help is really appreciated.

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Comments

EddieMay

Hi @shmalik

Can you check that you can send/receive email on this server outside of APS?

Cheers,

shmalik

Hi @EddieMay ,

thank you for your quick reply!

I configured two different test accounts (each with a different mail server) in Outlook. For both accounts send/receive worked well (IMAP and SMTP) but I had to use smtp STARTTLS with Port 587 or SSL/TLS with Port 465 in the Outlook setup. For everything else I received errors. Also, it needed the credentials for the smtp.
I do not know if there is a way in APS to explicitly use STARTTLS. I tried it in APS with the combination TLS with port 587 and SSL with port 465, without success.

EddieMay

Hi @shmalik

The APS documentation doesn't mention STARTTLS. ACS documentation does mention STARTTLS. However, this thread may prove helpful.

HTH,

justinmccune

Hi,

So if StartTLS is not supported on APS, how does one get outlook mail services to work?

Thanks.