Send emails from a distributed environment

RE: Send emails from a distributed environment

christopherl — Thu, 20 Oct 2016 23:22:44 GMT

I don't believe Appian will batch a single e-mail notification event notifications across multiple nodes. Each event will be sent to the e-mail server for that node...so an e-mail with 140 recipients would still fail if this is higher than your conf.notifications.MAX_RECIPIENTS setting.

That being said...you can configure each JVM to talk to its own node as the e-mail server for resiliency and high availability.

RE: Send emails from a distributed environment

tatjanah — Thu, 20 Oct 2016 21:59:02 GMT

...nsport.java:1950)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:642)
at javax.mail.Service.connect(Service.java:295)
at com.appiancorp.ap2.mail.Mail.sendMessage(Mail.java:328)
at com.appiancorp.ap2.mail.Mail.sendMessage(Mail.java:220)
at com.appiancorp.ap2.mail.Emailer.send(Emailer.java:124)
at com.appiancorp.ap2.mail.Emailer.send(Emailer.java:119)
at com.appiancorp.process.runtime.activities.SendEmailActivity.execute(SendEmailActivity.java:371)...
Caused by: java.net.SocketException: Connection reset...

Each application server has these settings in custom.properties:
conf.suite.MAIL_SCHEME=http
conf.suite.MAIL_SERVER_AND_PORT=ValidServerB:8080
conf.mailhandler.ntf_sndr_addr=noreply@ValidDomain.com
conf.mailhandler.email.domain=ValidDomain.com
conf.mailhandler.mail.smtp.host=mailhost....

Thanks.

RE: Send emails from a distributed environment

tatjanah — Thu, 20 Oct 2016 21:59:00 GMT

...ecause the number of recipients [144] would exceed the configured limit of [100]. Adjust conf.notifications.MAX_RECIPIENTS to a value greater than [100] as necessary for future notifications.
2016-10-20 16:42:46,548 [Appian Work Item - 295894 - ProcessExec05 : UnattendedJavaActivityRequest] ERROR com.appiancorp.ap2.mail.Mail - Could not send mail via mailhost.... to <validuser@validdomain.com>
2016-10-20 16:42:46,564 [Appian Work Item - 295894 - ProcessExec05 : UnattendedJavaActivityRequest] ERROR com.appiancorp.process.runtime.activities.SendEmailActivity - javax.mail.MessagingException: Exception reading response;
nested exception is:
java.net.SocketException: Connection reset
javax.mail.MessagingException: Exception reading response;
nested exception is:
java.net.SocketException: Connection reset
at com.sun.mail.smtp.SMTPTransport.readServerResponse(SMTPTransport.java:2210)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTra...