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dbuckholtz · 11-01-2022, 05:57 PM

I have been emailing books from Calibre to my Kindle for years. It worked last week. Today I get the following error:

Sending failed...

Traceback (most recent call last):
File "calibre\gui2\email.py", line 47, in run
File "calibre\gui2\email.py", line 136, in sendmail
File "calibre\utils\smtp.py", line 162, in sendmail
File "calibre\utils\smtp.py", line 142, in sendmail_direct
OSError: Failed to send mail: SMTPRecipientsRefused({'drb_oasis_2@kindle.com': (550, b'5.7.1 IP address blacklisted by recipient')})

If I manually send the file using the same email address, it works. Unfortunately doing it that way limits the size of the file you can send.

Thanks in advance for any help.

11-01-2022, 05:57 PM	#1
dbuckholtz Junior Member Posts: 3 Karma: 12 Join Date: Nov 2022 Device: kindle paperwhite	Email to kindle I have been emailing books from Calibre to my Kindle for years. It worked last week. Today I get the following error: Sending failed... Traceback (most recent call last): File "calibre\gui2\email.py", line 47, in run File "calibre\gui2\email.py", line 136, in sendmail File "calibre\utils\smtp.py", line 162, in sendmail File "calibre\utils\smtp.py", line 142, in sendmail_direct OSError: Failed to send mail: SMTPRecipientsRefused({'drb_oasis_2@kindle.com': (550, b'5.7.1 IP address blacklisted by recipient')}) If I manually send the file using the same email address, it works. Unfortunately doing it that way limits the size of the file you can send. Thanks in advance for any help.