3CX SMTP Server down?

[dustycr]

Hello,
since 4 hours our 3cx is unable to send emails
When i test the smtp server in the mail settings i get the following message.

MailKit.Net.Smtp.SmtpCommandException: Unauthenticated senders not allowed at MailKit.Net.Smtp.SmtpClient.OnSenderNotAccepted(MimeMessage message, MailboxAddress mailbox, SmtpResponse response) at MailKit.Net.Smtp.SmtpClient.d__88.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MailKit.Net.Smtp.SmtpClient.d__99.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at MailKit.Net.Smtp.SmtpClient.d__99.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MailKit.Net.Smtp.SmtpClient.Send(FormatOptions options, MimeMessage message, CancellationToken cancellationToken, ITransferProgress progress) at TcxMail.Mail.Send(AlternateView calendarData) Response:

I also tested this on multiple instances and always receive the same error.

Are there any known problems with the mail server?

Version: 15.5.0 Standard

Thanks in advance.

 

[Rhys Haskell]

Hello,
since 4 hours our 3cx is unable to send emails
When i test the smtp server in the mail settings i get the following message.

MailKit.Net.Smtp.SmtpCommandException: Unauthenticated senders not allowed at MailKit.Net.Smtp.SmtpClient.OnSenderNotAccepted(MimeMessage message, MailboxAddress mailbox, SmtpResponse response) at MailKit.Net.Smtp.SmtpClient.d__88.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MailKit.Net.Smtp.SmtpClient.d__99.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at MailKit.Net.Smtp.SmtpClient.d__99.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw() at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at MailKit.Net.Smtp.SmtpClient.Send(FormatOptions options, MimeMessage message, CancellationToken cancellationToken, ITransferProgress progress) at TcxMail.Mail.Send(AlternateView calendarData) Response:

I also tested this on multiple instances and always receive the same error.

Are there any known problems with the mail server?

Version: 15.5.0 Standard

Thanks in advance.

Do you have it set to static IP when in fact you have a dynamic IP?

 

[dustycr]

The instance has a static ip.

 

[Rhys Haskell]

The instance has a static ip.

Are you running SP6?

 

[dustycr]

Under my license page it says
Version Number 15.5.0

is there any command where i can check my service pack version?

 

[Ricky Horne]

I am having this exact same issue!

EDIT: I have managed to get a couple of emails out using the 3CX SMTP Server occasionally within the last 5 hours which leads me to believe the server must be having issues.....

 

[Martin BlackSheep]

Must be an SMTP issue at 3cx as all three of my installations are exhibiting the same problem since early morning (in uk).

 

[YiannisH_3CX]

Hello,

Please note that users currently using the 3CX SMTP may face some difficulties sending emails. We are currently working on restoring full service as soon as possible.

 

[dustycr]

Hello,

Please note that users currently using the 3CX SMTP may face some difficulties sending emails. We are currently working on restoring full service as soon as possible.

Thanks for the info.
A status page for services which are managed by 3cx like smtp-server, license-server etc. would be great.

 

[JP Seguin]

Hello,

Same problem here, in France, since this morning.

 

[Luis Molinas]

Hi, I have the same issue here in Paraguay!!
All my end customers have this problem with the 3CX SMTP server.

We wait for news from 3CX team.

 

[Mcardinal]

I have not been able to ping activation.3cx.com, which I believe this service uses to allow the server to send via smtp. It looks like this means that the smtp service is not working for any of our servers that run this. Anyone heard an update yet?

 

[Matt Scanzano]

Having the exact same issue across multiple clients within the same timeline.

 

[epress]

Hello,

Please note that users currently using the 3CX SMTP may face some difficulties sending emails. We are currently working on restoring full service as soon as possible.

Is it possible to know the expected resolution times?

 

[ronj]

All good here now. Test email sent / received.

 

[Luis Molinas]

All good here now. Test email sent / received.

Yes. Is right! The smtp service was restablished.

 

[DSXVOICE]

Just fyi:

Received-SPF: Fail (protection.outlook.com: domain of smtp.3cx.net does not designate 162.243.132.133 as permitted sender)

 

[Leon Zetekoff]

Test email works here now thanks

 

[cobaltit]

Under my license page it says
Version Number 15.5.0

is there any command where i can check my service pack version?

In the dashboard the last digit denotes the Update/SP level. So 15.5.xxxxx.X where capital 'X' is the patch level

 

[YiannisH_3CX]

Please note that the issue has been resolved.Thank you all for reporting this and for your patience while this was getting resolved