# MISSING\_MAILBOX@SYNTAX\_ERROR

**URL:** <https://community.ciphermail.com/t/missing-mailbox-syntax-error/720>\
**Category:** Gateway\
**Created:** [February 11, 2021, 7:21am UTC](https://community.ciphermail.com/t/missing-mailbox-syntax-error/720 "2021-02-11T07:21:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Matthias\_Dort](https://avatars.discourse-cdn.com/v4/letter/m/e480ec/32.png) [@Matthias\_Dort](https://community.ciphermail.com/u/Matthias_Dort)\
**Post date:** [February 11, 2021, 7:21am UTC](https://community.ciphermail.com/t/missing-mailbox-syntax-error/720/1 "2021-02-11T07:21:28Z")

</div>

Hello,

after System upgrade now i have one more error. The encryption notification mail comes with no from address. This field is now blank. What ist going wrong?

Thank for help!  
best regards  
Matthias

[attachment.htm](https://community.ciphermail.com/uploads/short-url/mwuxGt6jD16SlZmc1Etgv9dSWrr.htm) (284 Bytes)

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<div class="post-metadata">

**Author:** ![martijn](https://dub1.discourse-cdn.com/flex017/user_avatar/community.ciphermail.com/martijn/32/127_2.png) [@martijn](https://community.ciphermail.com/u/martijn)\
**Post date:** [February 11, 2021, 8:42am UTC](https://community.ciphermail.com/t/missing-mailbox-syntax-error/720/2 "2021-02-11T08:42:55Z")

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> after System upgrade now i have one more error. The encryption  
> notification mail comes with no from address. This field is now  
> blank. What ist going wrong?

The system sender and from address (which is used by the encryption notification) is now configurable. For various technical reasons, we could not set this to a default value (because we do not know the email domain of the system).

Can you try to set the notification sender and from (see advanced settings "System sender")

Kind regards,

Martijn Brinkers

> **···**
>
> --  
> CipherMail email encryption  
> Email encryption with support for S/MIME,  
> OpenPGP, PDF Messenger and Webmail Messenger

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<div class="post-metadata">

**Author:** ![martijn](https://dub1.discourse-cdn.com/flex017/user_avatar/community.ciphermail.com/martijn/32/127_2.png) [@martijn](https://community.ciphermail.com/u/martijn)\
**Post date:** [February 11, 2021, 8:47am UTC](https://community.ciphermail.com/t/missing-mailbox-syntax-error/720/3 "2021-02-11T08:47:32Z")

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I forgot to mention that the default template for encryption  
notification was modified to use the old default from "postmaster":

This would use postmaster as the from (which is the old default).

You probably changed the default encryption notification template.  
Instead of setting the system sender or from, you can change the From  
field for the encryption notification to the above to have the old  
behaviour

Kind regards,

Martijn Brinkers

> **···**
>
> From: \<${from!"postmaster"}\>
> 
> --  
> CipherMail email encryption  
> Email encryption with support for S/MIME,  
> OpenPGP, PDF Messenger and Webmail Messenger
> 
> On Thu, 2021-02-11 at 09:42 +0100, Martijn Brinkers via Users wrote:
> 
> > \> after System upgrade now i have one more error. The encryption  
> > \> notification mail comes with no from address. This field is now  
> > \> blank. What ist going wrong?
> > 
> > The system sender and from address (which is used by the encryption  
> > notification) is now configurable. For various technical reasons, we  
> > could not set this to a default value (because we do not know the  
> > email domain of the system).
> > 
> > Can you try to set the notification sender and from (see advanced  
> > settings "System sender")
> > 
> > Kind regards,
> > 
> > Martijn Brinkers

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<div class="post-metadata">

**Author:** ![Matthias\_Dort](https://avatars.discourse-cdn.com/v4/letter/m/e480ec/32.png) [@Matthias\_Dort](https://community.ciphermail.com/u/Matthias_Dort)\
**Post date:** [February 11, 2021, 10:17am UTC](https://community.ciphermail.com/t/missing-mailbox-syntax-error/720/4 "2021-02-11T10:17:56Z")

</div>

That was the solution, thank you very much!

[attachment.htm](https://community.ciphermail.com/uploads/short-url/4z0d5j8kdsAlBqzxsTf5sOowx73.htm) (1.06 KB)

> **···**
>
> Am Do. 11. Februar 2021 09:42 CET, Martijn Brinkers via Users \<users(a)lists.ciphermail.com\> schrieb:
> 
> > after System upgrade now i have one more error. The encryption  
> > notification mail comes with no from address. This field is now  
> > blank. What ist going wrong?
> 
> The system sender and from address (which is used by the encryption notification) is now configurable. For various technical reasons, we could not set this to a default value (because we do not know the email domain of the system).
> 
> Can you try to set the notification sender and from (see advanced settings "System sender")
> 
> Kind regards,
> 
> Martijn Brinkers
> 
> --  
> CipherMail email encryption  
> Email encryption with support for S/MIME,  
> OpenPGP, PDF Messenger and Webmail Messenger