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Using the same custom header multiple times (x-mailgun-tags)

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  • Last reply by soyeong

soyeong
soyeong
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Hi, I'm trying to use "x-mailgun-tags" headers two times for my email as Mailgun supports up to 3 tags. However, it seems that only 1 tag out of 2 is registered every time it sends. Does anybody know whether Thunderbird supports using the same headers multiple times? Thank you.

Hi, I'm trying to use "x-mailgun-tags" headers two times for my email as Mailgun supports up to 3 tags. However, it seems that only 1 tag out of 2 is registered every time it sends. Does anybody know whether Thunderbird supports using the same headers multiple times? Thank you.

All Replies (4)

Matt
Matt
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just how are you adding this header?

soyeong
soyeong Question owner
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Matt said

just how are you adding this header?

Hi Matt,

I'm using two lines one for each tag like the attached screenshot. I also tried putting them in one line with comma(tag1,tag2) and also with quotation+comma ("tag1,tag2") but both didn't work.

Matt
Matt
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ok lets try that again. How to you get X anything headers in Thunderbird composer?

soyeong
soyeong Question owner
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Matt said

ok lets try that again. How to you get X anything headers in Thunderbird composer?

I went to configure editor and searched for "mail.compose.other.header", and added my x-mailgun-tag header.

I referred to this page: https://www.lifewire.com/arbitrary-custom-heading-email-thunderbird-1173089