SMTP email sending error when sending free text invoices in batch (Mailgun)

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Posted on by MA-22050924-0

Hi,

We are experiencing an issue when we send free text invoices in batch (around 300-400 in one go) and some of the emails fail to send with the below error:

/>>> Sending email message has failed (host: smtp.mailgun.org; port: 587; trusted connection: True). The SMTP server has unexpectedly disconnected.”

Does anyone know how to solve this? Could it be because of sending limits per minute?

Thanks

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Anthony Blake 2,963 Super User 2025 Season 2 on at

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This will be throttling/sending limits limits controlled by your provider (Mailgun?).

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Mohamed Amine Mahmoudi 26,390 Super User 2025 Season 2 on at

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Hi,

I think there are a limitation of Email.

Try to contact the support of Mailgun

Best regards,

Mohamed Amine MAHMOUDI

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