venuscreats Posted June 7, 2012 Share Posted June 7, 2012 hello, we got this smtp error with our WHMCS. Email Sending Failed - SMTP Error: Could not authenticate. This was working fine 4 days ago.but now it is getting this error. is this due to our server?How can resolve this? 0 Quote Link to comment Share on other sites More sharing options...
kittubille Posted June 17, 2012 Share Posted June 17, 2012 Dont know exactly but this might be helpful http://gmailsignin.net/gmail-sign-in-problems/ 0 Quote Link to comment Share on other sites More sharing options...
M7med Posted September 2, 2012 Share Posted September 2, 2012 Same here.... Help please. 0 Quote Link to comment Share on other sites More sharing options...
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