Gmail "Send Mail As" 
                
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Topic: Gmail "Send Mail As"
                                Hi, I have just signed up for DYNU Full Email service and chnaged the MX records for my domain over to the dynu name server.  I use GMAIL as my client and want to use the "Send mail as" feature in GMAIL to send mail through the DYNU email service.When I try to add the smtp.dynu.com as the SMTP server and use my dynu login credentials, I get "Authentication failed. Please check your username/password.Server returned error: "334 VXNlcm5hbWU6 334 UGFzc3dvcmQ6 535 Authentication failed. Restarting authentication process. code(535) "Any ideas why I am getting this, I am sure I am using the correct dynu credentials?I can't find a tutorial on using this gmail feature with your service.CheersKEvin 
                                
                            
                            
                            
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                                Could it be that you are not using the correct credentials? I believe the username and password to log onto smtp.dynu.com should be user@yourdomain.com and the email account password.
                                
                            
                            
                            
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| Author | Topic: Gmail "Send Mail As" | 
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                                Kevin Appleby Joined: 6/11/2017  | 
                            
                                
                                 Sunday, June 11, 2017 11:27 AM 
                                    Hi, I have just signed up for DYNU Full Email service and chnaged the MX records for my domain over to the dynu name server.  I use GMAIL as my client and want to use the "Send mail as" feature in GMAIL to send mail through the DYNU email service.When I try to add the smtp.dynu.com as the SMTP server and use my dynu login credentials, I get "Authentication failed. Please check your username/password.Server returned error: "334 VXNlcm5hbWU6 334 UGFzc3dvcmQ6 535 Authentication failed. Restarting authentication process. code(535) "Any ideas why I am getting this, I am sure I am using the correct dynu credentials?I can't find a tutorial on using this gmail feature with your service.CheersKEvin 
                                    
                                 
                                
                                
                                
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                                thomaskruse Joined: 6/23/2017  | 
                            
                                
                                 Monday, June 26, 2017 11:44 AM 
                                    Could it be that you are not using the correct credentials? I believe the username and password to log onto smtp.dynu.com should be user@yourdomain.com and the email account password.
                                    
                                 
                                
                                
                                
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            Monday, November 3, 2025 11:46 PM
        
    