Sending separate mails with same subject to Gmail?

Gopi

Email systems such as Gmail like group email messages into "conversations", such that messages A is presumed to be a reply to message B. There's lots of methods they use to determine what message you're replying to, such as the Subject: header or the In-Reply-To: header.

However, since automated emails tend to sometimes reuse subject lines (e.g. "Monitoring failure on server"), often the mail service will assume that a given email is actually a reply to a previous message with the same subject line, even though the two are unrelated. This can lead to confusion and clients potentially missing an important notification.

How Can overcome this issue?

5 Replies

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Naimish Makwana3y ago
Hello Gopi,

it may not be ideal, but one possible option is to use slightly different subject lines for each message. You could include a timestamp or a unique identifier in the subject line to differentiate the messages.

Thanks

Naimish Makwana

Gopi3y ago

var tmpMessageId = string.Empty;
                    if (string.IsNullOrEmpty(email.MessageId))
                    {
                        Guid guid = Guid.NewGuid();
                        tmpMessageId = "<" + Convert.ToString(guid) + "@abc.com>";
                        header.Add("Message-ID", tmpMessageId);
                    }

This is the way iam generating message id.

Naimish Makwana3y ago
Your Message-ID header is unique for each message?

You need to make sure that Message-ID header is truly unique. Email clients rely on this header to identify messages, so if there is another message with the same Message-ID, they may still get grouped together.
Gopi3y ago
I have tried with message id still its grouped together it subject are same.
Naimish Makwana3y ago
Hello Gopi,

You can use "Message-ID" header. "Message-ID" header is a unique identifier assigned to each email message. By including this header in your emails, you can ensure that email clients correctly identify the message as a new conversation, even if the subject line is the same as previous messages.

You can add it like below:
```
MailMessage message = new MailMessage();

message.Headers.Add("Message-ID", "<[email protected]>");
.
.
.
You other mail code.
```
Thanks

Naimish Makwana