STMP email to office365 fails

Graylog Central (peer support)
1

Hello,

I have Graylog installed on Centos 7 I have setup a stream, an alert from the stream and a notification, however the notification fails with the following error:

2017-09-20T10:38:26.896-04:00 ERROR [EmailAlarmCallback] Alarm callback has email recipients and is triggered, but sending emails failed

org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.office365.com:587

Name        : graylog-server
Arch        : noarch
Version     : 2.3.1
Release     : 1

/etc/graylog/server/server.conf
# Email transport
transport_email_enabled = true
transport_email_hostname = smtp.office365.com
transport_email_port = 587
transport_email_use_auth = true
transport_email_use_tls = true
transport_email_use_ssl = false
transport_email_auth_username = <correct_email>
transport_email_auth_password = <correct_pwd>
transport_email_subject_prefix = [graylog]
transport_email_from_email = <correct_email>

Any help would would be appreciated

I also tried to send using SendGrid and I am getting the same error so I am guessing it could be the configuraton

The Graylog server encountered an error while trying to send an email. This is the detailed error message: org.apache.commons.mail.EmailException: Sending the email to the following server failed : smtp.sendgrid.net:587 (com.sun.mail.util.MailConnectException: Couldn’t connect to host, port: smtp.sendgrid.net, 587; timeout 60000; nested exception is: java.net.SocketTimeoutException: connect timed out)

here is the log for the connection error:

Caused by: com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.sendgrid.net, 587; timeout 60000
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2053) ~[graylog.jar:?]
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:386) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:245) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:194) ~[graylog.jar:?]
        at javax.mail.Transport.send0(Transport.java:253) ~[graylog.jar:?]
        at javax.mail.Transport.send(Transport.java:124) ~[graylog.jar:?]
        at org.apache.commons.mail.Email.sendMimeMessage(Email.java:1411) ~[graylog.jar:?]
        ... 33 more
Caused by: java.net.SocketTimeoutException: connect timed out
        at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:1.8.0_144]
        at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source) ~[?:1.8.0_144]
        at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source) ~[?:1.8.0_144]
        at java.net.AbstractPlainSocketImpl.connect(Unknown Source) ~[?:1.8.0_144]
        at java.net.SocksSocketImpl.connect(Unknown Source) ~[?:1.8.0_144]
        at java.net.Socket.connect(Unknown Source) ~[?:1.8.0_144]
        at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:310) ~[graylog.jar:?]
        at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:236) ~[graylog.jar:?]
        at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:2019) ~[graylog.jar:?]
        at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:697) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:386) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:245) ~[graylog.jar:?]
        at javax.mail.Service.connect(Service.java:194) ~[graylog.jar:?]
        at javax.mail.Transport.send0(Transport.java:253) ~[graylog.jar:?]
        at javax.mail.Transport.send(Transport.java:124) ~[graylog.jar:?]
2

Are you able to access smtp.sendgrid.net:587 from the system running Graylog? You can test this with netcat:

# echo 'QUIT'|nc smtp.sendgrid.net 587
220 SG ESMTP service ready at ismtpd0001p1lon1.sendgrid.net
221 See you later
1 Like
3

Thanks for the reply. I am getting
Ncat: Connection timed out.
which is strange this VM is on a very permissive network CENTOS firewall is off and even when I turn off selinux it does not work.

4

Maybe your network administrators or ISP block access to port 25/tcp and 587/tcp.

In the end you have to find out why access isn’t possible to the SMTP server(s) of SendGrid, but Graylog isn’t the culprit in this case. :wink:

1 Like
5

Yes, it turns out the ISP blocks it for past issues we have had with email blast sent out from within the network.

6

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