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#1 2021-05-14 11:25:58

herrep
Member
From: Munich
Registered: 2019-07-08
Posts: 77

XSIBackup-DC: SMTP error 550 when using option --subject

Hi,

My mail setup in XSIBackup-DC basically works. I took the existing configuration from XSIBackup-Pro where I had modified the email subject by using the option:

--description="my personal email header"

However, the --description does not appear to change the email subject any longer.  I received the status email also from XSIBackup-DC, but without any specific amendment in the subject.

I learned that XSIBackup-DC makes use of the option --subject. Therefore, I added the following option to my script:

--subject="my personal email header"

When I repeat the backup with this option, no email is sent. Instead, I see the following error in the xsibackup.log:

SMTP Error: 550 5.0.0 SUBJECTBLOCK This mail is a virus or spam or a mail loop
-----------------------------------------------------------------------------------------------------------
Errors in SMTP protocol:      KO
Returned: No errors in sendmail, next check is protocol

Unfortunately, I do not know as how to further debug this issue.  I already changed the subject line in case my text is revoked by the mail server. But the result was the same.

On the other side, email sending works fine via XSIBackup-Pro, from the same server.

Any hints?

Best regards,
Peter

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#2 2021-05-14 14:35:17

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: XSIBackup-DC: SMTP error 550 when using option --subject

You are receiving that error from the SMTP server, you probably added some text that triggered that response.

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#3 2021-05-16 13:06:52

herrep
Member
From: Munich
Registered: 2019-07-08
Posts: 77

Re: XSIBackup-DC: SMTP error 550 when using option --subject

This is very strange. When I use XSIBackup-Pro and set the subject line with the --description option, my email server will send the message. When I use XSIBackup-DC from the same ESXI server and set the same subject line, but now with the --subject option, it does not work. How should I debug this scenario?

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#4 2021-05-16 18:02:33

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: XSIBackup-DC: SMTP error 550 when using option --subject

Start by changing the --subject text to see if you receive the same response.

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#5 2021-05-16 18:08:52

herrep
Member
From: Munich
Registered: 2019-07-08
Posts: 77

Re: XSIBackup-DC: SMTP error 550 when using option --subject

I already did this with no success. Therefore, I would rather like to analyze log files. But I do not know where to start and my trials to find a suitable log file via "find" where not successful...

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#6 2021-05-16 18:17:37

admin
Administrator
Registered: 2017-04-21
Posts: 1,821

Re: XSIBackup-DC: SMTP error 550 when using option --subject

You can run the program with option --verbosity=10, nonetheless the finest level of detail you will find about that error is:

550 5.0.0 SUBJECTBLOCK This mail is a virus or spam or a mail loop.

This is coming from the SMTP protocol conversation and is definitive.

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#7 2021-05-17 10:29:47

herrep
Member
From: Munich
Registered: 2019-07-08
Posts: 77

Re: XSIBackup-DC: SMTP error 550 when using option --subject

Thank you very much. Understood. I already contacted our mail admin.

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