Getting error while sending email through Gmail SMTP - Please log in via your web browser and then try again 534-5 7 14

Question

I m having problems with gmail smtp server  I already read many posts here in StackOverflow about that subject   The best post I found about test the connection is this one   Although it is very well explained the error I m getting I couldn t find a answer  Google SMTP just says  Please log in via your web browser and then try again   I m completely sure that the password and the email  both in base64  are well encoded   As you can see here  in this image      there is just one difference I can notice  the user gmail com and password is sent in two steps  In the link above the guy sends both at the same time  Google didn t accepted that  But the fact is  I write auth login Y29udGF0     user in base64  googles responds    334 UGFzc3dvcmQ6  wich means  Password     YzQ2MjJmNWVi      paste my password in base64 and hit  enter    Then Goggle says   Please log in via your web browser and then try again  534-5 7 14 Learn more at https   support google com mail answer 7126229  And I m going through all this problem because  MediaTemple and  DreamHost are not working with PHPMailer  I already use PHPMailer for a long time ago  in so many different hosts  using SMTP but failed with  mt  and Dreamhost  Now I m in middle of a project that it  must lt  work on these two hosts

User · Answer

I recently got this message  too  after I switched the data center location of a web application sending through Google SMTP   The URL that apparently Google means is  https   support google com mail answer 78754  At that link  one of the steps is to reset your password   Not coincidentally  I also received an email from google with a subject of  Suspicious sign in prevented  that instructed me to change my password   After resetting my password  I was back to using Google SMTP as usual

User · Answer

I know this question is already been answered but for new comers those two solutions may help    Make sure your gmail is allowing low secure apps to sign in  you can turn it on here  https   www google com settings security lesssecureapps  Change your password

User · Answer

There are two ways to resolve this  and only one may work  depending on how you re accessing Google   The first method is to authorize access for your IP or client machine using the https   accounts google com DisplayUnlockCaptcha link   That can resolve authentication issues on client devices  like mobile or desktop apps   I would test this first  because it results in a lower overall decrease in account security   If the above link doesn t work  it s because the session is being initiated by an app or device that is not associated with your particular location   Examples include    An app that uses a remote server to retrieve data  like a web site or  in my case  other Google servers A company mail server fetching mail on your behalf   In all such cases you have to use the https   www google com settings security lesssecureapps link referenced above   TLDR  check the captcha link first  and if it doesn t work  try the other one and enable less secure apps

User · Answer

Some apps are marked as less secure by google  so you just need to give access for those app so google will allow you to access its services to you   follow this http   www codematrics com your-imap-server-wants-to-alert-you-to-the-following-please-login-via-your-web-browser-gmail

User · Answer

I did this every time the problem happens   https   accounts google com DisplayUnlockCaptcha   problem sorted in my case

User · Answer

There are at least these two issues I have observed for this problem  1  It could be either because your sender username or password might not be correct  2  Or it could be as answered by Avinash above  the security condition on the account  Once you try SendMail using SMTP  you normally get a notification in to your account that it may be an unauthorized attempt to access your account  if not user can follow the link to turn the settings to lessSecureApp  Once this is done and smtp SendMail is tried again  it works

User · Answer

To send mail using Gmail SMTP  need to change your account setting  Login into your gmail accout then follow the link below to change your gmail account setting to send mail using your apps and program   https   www google com settings security lesssecureapps  Note  This setting is not available for accounts with 2-Step Verification enabled  Such accounts require an application-specific password for less secure apps access

User · Answer

I also came across this problem   Google detected my Mac as a new device and blocked it   To unblock  in a web browser log in to your Google account and go to  Account Settings    Scroll down and you ll find  Recent activities    Click just below that on  Devices    Your device will be listed   Okay your device   SMTP started working for me after I did this and lowered the protection as mentioned above

User · Answer

I know this is an older issue  but I recently had the same problem and was having issues resolving it  despite attempting the DisplayUnlockCaptcha fix  This is how I got it alive   Head over to Account Security Settings  https   www google com settings security lesssecureapps  and enable  Access for less secure apps   this allows you to use the google smtp for clients other than the official ones   Update  Google has been so kind as to list all the potential problems and fixes for us  Although I recommend trying the less secure apps setting  Be sure you are applying these to the correct account         If you ve turned on 2-Step Verification for your account  you might    need to enter an App password instead of your regular password     Sign in to your account from the web version of Gmail at       https   mail google com  Once you   re signed in  try signing in   to the mail app again    Visit http   www google com accounts DisplayUnlockCaptcha and    sign in with your Gmail username and password  If asked  enter the   letters in the distorted picture    Your app might not support the latest security standards  Try    changing a few settings to allow less secure apps access to your    account    Make sure your mail app isn t set to check for new email too often     If your mail app checks for new messages more than once every 10   minutes  the app   s access to your account could be blocked

[smtp] Getting error while sending email through Gmail SMTP - "Please log in via your web browser and then try again. 534-5.7.14"

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