MariuszTrybus

`Content-Disposition` is set to `inline` when you set `contentId` in `PostmarkMessageAttachment`. To correctly inline an image the `contentId` must match the `src` attribute of an `img` tag. ```csharp await client.SendMessageAsync(...

Postmark-dotnet internally uses a static instance of `HttpClient` that is shared by all postmark clients - you can use either approach.

Thank you for pointing this out. I've just added it for the newest release.

https://github.com/ActiveCampaign/postmark-dotnet/releases

There are no plans to change the behaviour at the moment.

Hey @mvpindev, I try to reproduce the issue but I can't get the TemplateModel values to get serialised as arrays, could you provide a small code snippet? I tried ```csharp...

Thank you for creating the ticket and sharing your findings. It's an edge case but it may help others in the future. I am sorry for any inconvenience caused by...

@soatley As far as I know nothing changed, if you have any issues please contact our support with more details. Regarding the comma in `display-name` - according to the rfc5322...