Increasing E-Mail size

ozboss · 1. November 2020

So I had a lot of files change and the snapraid diff job was not able to send the report mail because it was too large:

Code

postdrop: warning: uid=0: File too large
send-mail: fatal: root(0): message file too big
Can't send mail: sendmail process failed with error code 75

So I tried to change /etc/postfix/main.cf by creating the file /srv/salt/omv/deploy/postfix/99custom.sls :

Code

custom_postfix_size_nolimit:
  file.keyvalue:
    - name: /etc/postfix/main.cf
    - key_values:
        mailbox_size_limit: 0
        message_size_limit: 0
    - separator: ' = '
    - uncomment: '# '
    - append_if_not_found: True

Running omv-salt deploy run postfix returns:

Code

ID: custom_postfix_size_nolimit
Function: file.keyvalue
Name: /etc/postfix/main.cf
Result: False
Comment: file.keyvalue key and value not supplied and key_values empty
Started: 19:57:21.263072
Duration: 0.36 ms
Changes:

I am pretty sure the formatting on the key_values dictionary is correct (reference).

Any ideas on what I did wrong or how I can appropriately adjust the size limit for postfix?

votdev · 2. November 2020

Why so complicated? Simply use

Code

custom_postfix_size_nolimit:
  file.append:
    - name: /etc/postfix/main.cf
    - text: |
        mailbox_size_limit: 0
        message_size_limit: 0

ozboss · 2. November 2020

Zitat von votdev

Why so complicated? Simply use

Code

custom_postfix_size_nolimit:
  file.append:
    - name: /etc/postfix/main.cf
    - text: |
        mailbox_size_limit: 0
        message_size_limit: 0

That's what I tried at first but it will result in:

Code

...
alias_maps = hash:/etc/aliases
transport_maps = hash:/etc/postfix/transport
message_size_limit = 10240000
mailbox_size_limit = 0
message_size_limit = 0

So "message_size_limit" is defined twice.

I don't know if this is an issue, but anyway it does not look good

That's why I tried to do it properly.

What does work though is:

Code

custom_postfix_message_size_nolimit:
  file.keyvalue:
    - name: /etc/postfix/main.cf
    - key: message_size_limit
    - value: 0
    - separator: ' = '
    - uncomment: '# '
    - append_if_not_found: True
custom_postfix_mailbox_size_nolimit:
  file.append:
    - name: /etc/postfix/main.cf
    - text: 'mailbox_size_limit = 0'

Alles anzeigen

Then again 'mailbox_size_limit' is probably not necessary since I won't be receiving mails and this is probably a question better asked in some SaltStack forum

auanasgheps · 2. November 2020

ozboss If you want to approach the issue in another way I can provide a Snapraid script that does not display the actual file changes so the email stays nice short and clean.

votdev · 2. November 2020

I see, message_size_limit can be customized via the environment variable OMV_POSTFIX_MAIN_MAILBOX_SIZE_LIMIT. Please check https://openmediavault.readthe…l#environmental-variables how to do that.

ozboss · 2. November 2020

Zitat von votdev

I see, message_size_limit can be customized via the environment variable OMV_POSTFIX_MAIN_MAILBOX_SIZE_LIMIT. Please check https://openmediavault.readthe…l#environmental-variables how to do that.

This seems like a clean solution that I am happy to use. Thank you.

Maybe rename the variable to OMV_POSTFIX_MAIN_MESSAGE_SIZE_LIMIT?

I definitely have to start using these variables more often.

auanasgheps yes I would be interested to see an alternative Snapraid script.

auanasgheps · 3. November 2020

Zitat von ozboss

This seems like a clean solution that I am happy to use. Thank you.
Maybe rename the variable to OMV_POSTFIX_MAIN_MESSAGE_SIZE_LIMIT?
I definitely have to start using these variables more often.

auanasgheps yes I would be interested to see an alternative Snapraid script.

Variables are a clever solution to change advanced stuff that must be persisted and is not worth showing in GUI.
You'll be surprised by the amount of variables available.

To see all of them, run

grep -r 'default:OMV_' /srv/salt/omv/* | cut -d ":" -f3 | cut -d')' -f1 | sort | uniq

I'll PM you the script I've put together.

votdev · 3. November 2020

Zitat von ozboss

Maybe rename the variable to OMV_POSTFIX_MAIN_MESSAGE_SIZE_LIMIT?

Done, see https://github.com/openmediava…bf50570b3a2dc2bf6d9118db5.

edogd · 24. Dezember 2020

Zitat von auanasgheps

ozboss If you want to approach the issue in another way I can provide a Snapraid script that does not display the actual file changes so the email stays nice short and clean.

Can you please share such a script?

Is it also possible to have the script that does display all the file changes just save the changes to a log file and send out an email saying that it ran and with a short summary? This way emails are readable and if there are problems then one can refer back to the full log.

auanasgheps · 26. Dezember 2020

Zitat von edogd

Can you please share such a script?
Is it also possible to have the script that does display all the file changes just save the changes to a log file and send out an email saying that it ran and with a short summary? This way emails are readable and if there are problems then one can refer back to the full log.

That's what my script does!

Please send me a PM so I don't forget (quite busy during these days)

Increasing E-Mail size

ozboss 2. November 2020

Jetzt mitmachen!

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