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Some emails not being sent using Thunderbird

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  • Last reply by Matt

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Today 4th April 2024, I have found on 3 different computers using Thunderbird that any email address that has a p in the address cannot be sent. Sounds weird but true. Email addresses without a p in the address send out OK. Using Webmail option to email addresses with a p in the address - no problem - only when sent using Thunderbird. Has anyone else had this problem?

Today 4th April 2024, I have found on 3 different computers using Thunderbird that any email address that has a''' p''' in the address cannot be sent. Sounds weird but true. Email addresses without a '''p''' in the address send out OK. Using Webmail option to email addresses with a''' p''' in the address - no problem - only when sent using Thunderbird. Has anyone else had this problem?
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Do you have an antivirus scanning outgoing email?