E-Mail subject not showing "ü" german Umlaute

[KM-HM]

Preconditions

1. Magento Version 2.2.4 installed via composer
2. PHP 7.0.30-0ubuntu0.16.04.1
   (3. My magento has this module https://github.com/magepal/magento2-gmail-smtp-app)

Steps to reproduce

1. Create a e-mail template containing a "ü" (üäö german stuff) in the subject
2. Create an Order to get the E-mail
3. View the email in outlook (web.de was also reported to me)

Expected result

1. E-mail subject should display the "ü" like it was authored

Actual result

1. E-mail subject shows "?" question mark in the same position as the "ü" should be

I resolved this issue by creating a plugin for Magento\Email\Model\Template method getSubject/afterGetSubject with utf8_encode($result) to UTF-8 encode the result.
This seems to be working for now.

Note for the module mentioned in the preconditions:
https://github.com/magepal/magento2-gmail-smtp-app
This module was installed before I upgraded to Magento 2.2.4 from 2.1 and there were no issues with the encoding of the subject line

Also the System does not retrieve the subject line when opening the email template.

[ymarc77]

I noticed this same problem… Any diacritics in the subject line is converted to "?".

[KM-HM]

@ymarc77 Tell as your Magento version please

[ymarc77]

Magento 2.2.4, noticed on 2.2.3 too.

[KM-HM]

Did you recently Upgrade to 2.2.X ?

The Magento instance I'm working on was only affected when I upgraded to 2.2.4 from 2.1.x

[ymarc77]

No. I migrated from 1.8.1 to 2.2.1, then updated to 2.2.2 and 2.2.3.

[kkrieger85]

#mhlej18

[magento-engcom-team]

@kkrieger85 thank you for joining. Please accept team invitation here and self-assign the issue.

[kkrieger85]

@magento-engcom-team give me 2.2.4 instance

[magento-engcom-team]

Hi @kkrieger85. Thank you for your request. I'm working on Magento 2.2.4 instance for you

[magento-engcom-team]

Hi @kkrieger85, here is your Magento instance.
Admin access: https://i-15620-2-2-4.engcom.dev.magento.com/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[kkrieger85]

I cannot not reproduce this issue with Vanilla Magento 2.2.4

[kkrieger85]

E-Mail template:

Settings:

Order email (opened in Airmail3)

Order email (opened in Gmail, webmail)

[kkrieger85]

E-Mail source:

Subject: Für völligen Spaß Your Main Website Store order confirmation

[okorshenko]

Hi @kkrieger85 thank you for your research and investigation the issue

[ghost]

I'm experiencing the same thing.

I've recently updated from 2.1.9 to 2.1.12 then 2.20 and 2.2.5:

admin:

on my email:

Should be "Pedido de notificação"

Another issue I'm facing, every time I open the template the subject is gone.

[ymarc77]

I didn't find a solution, I'm disappointed with this error…

[rosen4o]

Same issue after update to 2.2.5
Some filter is run on this variable content but can't find which and how to prevent it
I have checked into the database and all data is stored correctly but it's not visualized on template edit and also on send correctly

[jaykobi]

Same issue after update to 2.2.5

This issue realy should be reopened! Mentioned also here #8094

[milindsingh]

#20384

[RahulKachhadia]

Ready to work on this issue at #mm19in

[magento-engcom-team]

Hi @rahul-kachhadiya. Thank you for working on this issue.
Looks like this issue is already verified and confirmed. But if your want to validate it one more time, please, go though the following instruction:

• 1. Add/Edit Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• 2. Verify that the issue is reproducible on 2.3-develop branch

  Details

  - Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• 3. Verify that the issue is reproducible on 2.2-develop branch.

  Details

  - Add the comment @magento-engcom-team give me 2.2-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.2-develop branch, please add the label Reproduced on 2.2.x

• 4. If the issue is not relevant or is not reproducible any more, feel free to close it.

[RahulKachhadia]

@magento-engcom-team give me 2.3-develop instance

[magento-engcom-team]

Hi @rahul-kachhadiya. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @rahul-kachhadiya, here is your Magento instance.
Admin access: https://i-15620-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[magento-engcom-team]

Hi @ananth-iyer. Thank you for working on this issue.
Looks like this issue is already verified and confirmed. But if you want to validate it one more time, please, go though the following instruction:

• 1. Add/Edit Component: XXXXX label(s) to the ticket, indicating the components it may be related to.

• 2. Verify that the issue is reproducible on 2.3-develop branch

  Details

  - Add the comment @magento-engcom-team give me 2.3-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.3-develop branch, please, add the label Reproduced on 2.3.x.
  - If the issue is not reproducible, add your comment that issue is not reproducible and close the issue and stop verification process here!

• 3. Verify that the issue is reproducible on 2.2-develop branch.

  Details

  - Add the comment @magento-engcom-team give me 2.2-develop instance to deploy test instance on Magento infrastructure.
  - If the issue is reproducible on 2.2-develop branch, please add the label Reproduced on 2.2.x

• 4. If the issue is not relevant or is not reproducible any more, feel free to close it.

[ananth-iyer]

@magento-engcom-team give me 2.3-develop instance

[magento-engcom-team]

Hi @ananth-iyer. Thank you for your request. I'm working on Magento 2.3-develop instance for you

[magento-engcom-team]

Hi @ananth-iyer, here is your Magento instance.
Admin access: https://i-15620-2-3-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[ananth-iyer]

@magento-engcom-team This issue requires email sending service enabled. Can you help me with this?

[ananth-iyer]

@magento-engcom-team give me 2.2-develop instance

[magento-engcom-team]

Hi @ananth-iyer. Thank you for your request. I'm working on Magento 2.2-develop instance for you

[magento-engcom-team]

Hi @ananth-iyer, here is your Magento instance.
Admin access: https://i-15620-2-2-develop.instances.magento-community.engineering/admin
Login: admin Password: 123123q
Instance will be terminated in up to 3 hours.

[ananth-iyer]

@magento-engcom-team @kemexyz This issue is only in 2.2-develop instance. While testing on local 2.2 instance I found that MySQL is returning correct german character ü but Magento PHP code is converting "ü" to "?". So will check which file is required for 2.2 version when I get free.

[zaietsv]

@magento-engcom-team @kemexyz This issue is only in 2.2-develop instance. While testing on local 2.2 instance I found that MySQL is returning correct german character ü but Magento PHP code is converting "ü" to "?". So will check which file is required for 2.2 version when I get free.

You need only to update a Dotmailer module to last versions. They have declared a fix six months ago.

[zaietsv]

Hereby they've released the fix for this in v3.0.2 with this commit: 635a62c dotmailer/dotmailer-magento2-extension#517 (comment)

[ananth-iyer]

@zaietsv Thank you for pointing it out the release commit. But I tried to update Dotmailer but I got composer error:

After that I copied the fixes in Magento 2.2 then edited email template on admin & tested email send. And found it showing german letter in email subject & body.
@kemexyz If you are unable to update Dotmailer then I would suggest upgrade to Magento 2.3.0 OR you can check other options to get fixes on your Magento 2.2.

EDITED
Because this issue is from third-party extension Dotmailer version 2.6.0 & If you are not using this extension then can disable it right away. So it will fix german letter issue.