I'm trying to send emails from my Grails 2.0 app via Sendgrid on Heroku but I can't find the right configuration. I keep getting "Connection refused" exceptions:
java.net.ConnectException: Connection refused
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:193)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
at java.net.Socket.connect(Socket.java:546)
at java.net.Socket.connect(Socket.java:495)
at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:233)
at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:189)
at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1359)
at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:412)
at javax.mail.Service.connect(Service.java:288)
at grails.plugin.mail.MailMessageBuilder.sendMessage(MailMessageBuilder.groovy:102)
at grails.plugin.mail.MailService.sendMail(MailService.groovy:39)
at MailGrailsPlugin$_configureSendMail_closure6.doCall(MailGrailsPlugin.groovy:149)
The latest configuration I tried is the following:
grails {
mail {
host = "smtp.sendgrid.net"
port = 587
username = System.env.SENDGRID_USERNAME
password = System.env.SENDGRID_PASSWORD
props = [
"mail.smtp.protocol":"smtps",
"mail.smtp.channel":"plain",
"mail.smtp.auth":"true",
"mail.debug":"true"
]
}
}
It looks like you might have a firewall or ISP blocking port 587. Try this: http://support.sendgrid.com/entries/131119-help-smtp-port-25-is-being-blocked
Elmer Thomas, Developer Evangelist at SendGrid.com
Actually, the problem came from my Grails configuration. For some reason, my mail config was reset at some point and what I had in Config.groovy was not used. So the app tried to send emails via localhost and that didn't work. I found a workaround to this problem but I don't understand yet why it works.
Related
I have Keycloak running in a Kubernetes cluster. Authentication works but I need to set up e-mail to be able to send e-mails for verification and password reset.
I have SendGrid set up as an SMTP Relay. These settings (host, port and api key) work when I send mail using the SendGrid java client. However, when pressing Test connection in KeyCloak I get:
[Error] Failed to load resource: the server responded with a status of 500 ()
[Debug] Remove message (services.js, line 14)
[Debug] Added message (services.js, line 15)
[Error] Can't find variable: error
https://<domain>/auth/resources/ong8v/admin/keycloak/js/controllers/realm.js:76 – "Possibly unhandled rejection: {}"
[Debug] Remove message (services.js, line 14)
There isn't much to go on here. I have an e-mail address set up for the currently logged in user. I've also tried resetting the password in case the Test connection functionality was broken but that didn't work either.
The Realm Settings settings user for email are as such:
host: smtp.sendgrid.net
port: 587
from: test#<domain>
Enable StartTLS: true
Username: "apikey"
Password: <api key>
Any idea what can be wrong? Or how to find out? For instance, maybe I can get a more meaningful error message somehow.
Edit:
I got the server logs.
Failed to send email: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.sendgrid.net, 587; timeout 10000;
nested exception is: java.net.SocketTimeoutException: connect timed out
Edit 2:
I've tried sending mail using Telnet using the exact same settings and that works. So apparently it's something with Keycloak or its underlying Java libraries that's causing issues sending e-mail.
Turns out that Keycloak works and that emails were blocked by the hosting provider.
I am writing a Rust application that will send email through an Exchange server with SMTP functionality enabled. According to Microsoft's webpage, the settings that are required are:
Server address smtp.office365.com
Port 587
StartTLS Enabled
Credentials for mail account login
These are corroborated by the POP/IMAP settings of the webmail service.
Here is my code (with some censoring):
extern crate lettre;
use self::lettre::email::EmailBuilder;
use self::lettre::transport::smtp::{SecurityLevel, SmtpTransportBuilder, SUBMISSION_PORT};
use self::lettre::transport::smtp::authentication::Mechanism;
use self::lettre::transport::EmailTransport;
pub fn send_mail() {
let email = EmailBuilder::new()
.from("my email")
.to("destination email")
.body("testing")
.subject("testing")
.build()
.unwrap();
// Connect to SMTP server
let mut transport = SmtpTransportBuilder::new(("smtp.office365.com", SUBMISSION_PORT))
.expect("Failed to create email transport")
.encrypt()
.smtp_utf8(true)
.credentials("my email", "my password")
.authentication_mechanism(Mechanism::Login)
.build();
println!("Mail transport built");
println!("{:?}", transport.send(email.clone()));
}
When I compile and run the code,it gives me this error:
Err(Permanent(Response { code: Code { severity:
PermanentNegativeCompletion, category: Unspecified3, detail: 0 },
message: ["5.7.57 SMTP; Client was not authenticated to send anonymous
mail during MAIL FROM [SYXPR01CA0106.ausprd01.prod.outlook.com]"] }))
Why is this happening?
The closest I've come in my research is an issue on GitHub in relation to the lettre library not supporting the Login authentication mechanism (which Office 365 uses); however, the codebase was updated to support Login and I am using the master branch directly from GitHub so theoretically my application should support the Login mechanism.
Edit: Forgot to mention that I attempted an EHLO to the server, but it returned a (Client:(Connection closed)) error.
I used telnet and openssl to try connecting directly to my SMTP server, where I found that AUTH LOGIN requires 3 commands; one to send the AUTH LOGIN code, one to send the username and another to send the password. I found that the lettre library implements all its AUTH commands as single commands, so this wasn't working with the server. I downloaded the source code for the library, changed the send function to do the three separate commands, recompiled my code and everything worked fine :)
My addition to the lettre code:
if (accepted_mechanisms[0] == Mechanism::Login) &&
(accepted_mechanisms.capacity() == 1) {
try_smtp!(self.client.command("AUTH LOGIN"), self);
try_smtp!(self.client.command(base64::encode_config(
&username.as_bytes(),
base64::STANDARD).as_str()), self);
try_smtp!(self.client.command(base64::encode_config(
&password.as_bytes(),
base64::STANDARD).as_str()), self);
I am trying to setup GitLab in windows azure. I followed this blog Setup GitLab in azure and it is working as charm. But I could not configure smtp mail sending through GitLab.
I have followed this settings SMTP Setup. Tried both Gmail and Zoho, with both ports 465 and 587
I am getting the following error
2016-09-21_09:44:28.55626 2016-09-21T09:44:28.556Z 13562 TID-vskyw WARN: {"class":"ActiveJob::QueueAdapters::SidekiqAdapter::JobWrapper","wrapped":"ActionMailer::DeliveryJob","queue":"mailers","args":[{"job_class":"ActionMailer::DeliveryJob","job_id":"6a954ac7-19d6-4b27-b28c-c511f25e6896","queue_name":"mailers","arguments":["DeviseMailer","confirmation_instructions","deliver_now",{"_aj_globalid":"gid://gitlab/User/1"},"tgShkQTx5e1sALoxkkGi",{"to":"<my email here>","_aj_symbol_keys":["to"]}],"locale":"en"}],"retry":true,"jid":"cbd7dc87ce4202265d1a6be7","created_at":1474450319.7324607,"enqueued_at":1474451065.2083879,"error_message":"end of file reached","error_class":"EOFError","failed_at":1474450320.9358478,"retry_count":5,"retried_at":1474451068.5555682}
2016-09-21_09:44:28.55639 2016-09-21T09:44:28.556Z 13562 TID-vskyw WARN: EOFError: end of file reached
I tried various combinations for SSL and TLS, but no luck yet!
I am using GitLab 8.11.7
Any help would be appreciated.
UPDATE:
I tried with GMail smtp and it works fine after allowing access to apps using this URL. This issue might be due to some Zoho's smtp policy
You should use the new smtp configurations
If you're installing from source and use SMTP to deliver mail, you will need to add the following line to config/initializers/smtp_settings.rb:
ActionMailer::Base.delivery_method = :smtp
As seen in https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/update/8.10-to-8.11.md#smtp-configuration
A configuration exemple for smtp_settings.rb is:
if Rails.env.production?
Rails.application.config.action_mailer.delivery_method = :smtp
ActionMailer::Base.delivery_method = :smtp
ActionMailer::Base.smtp_settings = {
address: "email.server.com",
port: 465,
user_name: "smtp",
password: "123456",
domain: "gitlab.company.com",
authentication: :login,
enable_starttls_auto: true,
openssl_verify_mode: 'peer' # See ActionMailer documentation for other possible options
}
end
You can see the sample file doc for configuring SMTP at https://gitlab.com/gitlab-org/gitlab-ce/blob/8-12-stable/config/initializers/smtp_settings.rb.sample#L13?
You can see more configuration options here http://api.rubyonrails.org/classes/ActionMailer/Base.html#class-ActionMailer::Base-label-Configuration+options
I have installed Bugzilla-4.4 in my new Ubuntu Machine. When I submit a new bug, I got the email sent notification. But the sent email is not received by the recipients . I am using Sendmail mail configuration in Bugzilla. I have also tested "Test" mail configuration in which the mail is logged in bugzilla-4.4/data/mailer.testfile successfully. When I check my mail.log file I found the following:
(1001/1001), delay=3+15:58:59, xdelay=00:00:00, mailer=esmtp, pri=47643784, relay=mailrelay.netcon.in., dsn=4.0.0, stat=Deferred: Connection timed out with mailrelay.netcon.in.
I have no idea what to do.Is anything I missed out while Sendmail configuration? Any help!!
Try nc from command line:
nc mailrelay.netcon.in 25
which should result in something like:
220 mailrelay.netcon.in ESMTP Postfix
If not check for internet connection and/or router firewall rules.
I'm using Grails Mail plugin and trying to send email and keep getting:
Error 500: Executing action [sendInvite] of controller
[RegisterController] caused exception: Failed messages:
javax.mail.SendFailedException: Invalid Addresses; nested exception
is: com.sun.mail.smtp.SMTPAddressFailedException: 550 must be
authenticated
I'm properly following the instructions at: http://www.grails.org/Mail+plugin
The mail server is returning an error when you try to send out the mail. 550 is a generic SMTP failure code; in this case it looks like you are missing a username and password. Some SMTP servers to not require authentication but most do, especially if they're publicly available on the internet. It's also possible that your SMTP server requires an SSL connection and you're connecting with an unsecured socket.
The example config for gmail shows how to set all the mail server authentication options in Config.groovy:
grails {
mail {
host = "smtp.gmail.com"
port = 465
username = "youracount#gmail.com"
password = "yourpassword"
props = ["mail.smtp.auth":"true",
"mail.smtp.socketFactory.port":"465",
"mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory",
"mail.smtp.socketFactory.fallback":"false"]
}
}
Add "mail.debug": "true" to props to turn on JavaMail debugging to get a better picture of what is happening before the failure.
In my case the 550 error was caused by me having accidentally selected and IMAP account as the default account but sending emails from my Outlook Connector Account (which has no authentication settings to make).
I changed the Outlook Connector Account to default. Resent the emails and no errors.
So check that the correct email account is set up as the default also