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Bad sender address syntax

  • 3 replies
  • 1 has this problem
  • 136 views
  • Last reply by zeus777

zeus777
zeus777
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Just started receiving this message. "An error occurred while sending mail. The mail server responded: 5.1.7 Bad sender address syntax. Please verify that your email address is correct in your account settings and try again." This account was working perfectly now I can't send any message without getting this message. How do I fix this?

Just started receiving this message. "An error occurred while sending mail. The mail server responded: 5.1.7 Bad sender address syntax. Please verify that your email address is correct in your account settings and try again." This account was working perfectly now I can't send any message without getting this message. How do I fix this?

Chosen solution

What server are you using? Yahoo ? What comes after the @ in your email address?

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Toad-Hall
Toad-Hall
  • Top 25 Contributor
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Chosen Solution

What server are you using? Yahoo ? What comes after the @ in your email address?

Toad-Hall
Toad-Hall
  • Top 25 Contributor
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re :Please verify that your email address is correct in your account settings

right click on mail account name in Folder Pane and select 'Settings' select 'Server Settings' Email address = full email address you can completely remove to ensure no hidden blank spaces and then retype the full email address. Make sure you do not add a full stop at the end nor add a space. click on OK

zeus777
zeus777 Question owner
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Thank you. Somehow the email address was altered to the website address. I don't do this so Thunderbird must have. Might be a bug. Thanks Toad-Hall for your help.