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all mails to an outlook address are being bounced

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  • Last reply by Matt

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For the last 3 days, all emails I send to an outlook address are bounced. Multi address mails are received by the others but if the recipient is an outlook address those all are undelivered. My ISP says this is a Thunderbird issue. When I sent the emails from my ISP's email webpage the outlook mails are delivered.

For the last 3 days, all emails I send to an outlook address are bounced. Multi address mails are received by the others but if the recipient is an outlook address those all are undelivered. My ISP says this is a Thunderbird issue. When I sent the emails from my ISP's email webpage the outlook mails are delivered.

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Well lets have a look at your SMTP server settings and see if we can work it out. My guess is the issue is a rather incompetent person with your mail provider. But lets check that. So what server are you sending from and what port number are you using.