phpmailer - The following SMTP Error Data not accepted

Question

I m trying to figure out this issue for 6 hours  But there is nothing to make sense  Here is the scenario  There is a well formatted HTML template    mail body          lt b gt Message Num   lt  b gt  769 lt br   gt       lt b gt Message Date   lt  b gt  2013-04-08 09 03 21 lt br   gt       lt b gt Name   lt  b gt  John Doe lt br   gt       lt b gt Phone   lt  b gt  123456789 lt br   gt       lt b gt E-mail   lt  b gt  abcdf somedomain com lt br   gt       lt b gt Message   lt  b gt  Here is the message info lt br   gt       Here is the array of recipients  mails    recipients   array  abc something com   xyz somtehing com      Everything looks fine and email ready to send Here is the phpmailer config    mail   new PHPMailer      mail- gt IsSMTP     mail- gt From    noreply something com     mail- gt FromName    TEST    mail- gt WordWrap   50   foreach  recipients as  mail add         mail- gt AddAddress  mail add      mail- gt IsHTML true    mail- gt Subject    TEST Subject    mail- gt Body    mail body  if   mail- gt Send          echo  mail- gt ErrorInfo    else            echo  Mail sent          Everything is same when I test it  But sometimes email was sent  Sometimes it was not sent  Give me the following error   The following SMTP Error  Data not accepted   I hope I explained

User · Answer

If you are using the Office 365 SMTP gateway then "SMTP Error: data not accepted." is the response you will get if the mailbox is full (even if you are just sending from it).

Try deleting some messages out of the mailbox.

User · Answer

Over a certain message of size  it messes up the content when setting through  mail- Body   You can test it  if it works well with small messages  but doesn t work with larger  over 4-6 kB   then this is the problem   It seems to be the problem of  mail- Body  so you can get around this by setting the HTML body manually via  mail- MsgHTML  message   And then you can try to only add the non-html body by  mail- AltBody   Hope that I could help  feel free to provide more details  information

User · Answer

I was using just   mail- gt Body       message    and for some sumbited forms the PHP was returning the error   SMTP Error  data not accepted SMTP server error  DATA END command failed Detail  This message was classified as SPAM and may not be delivered  SMTP code  550  I got it fixed adding this code after  mail- Body  message     mail- gt MsgHTML    message   mail- gt AltBody    message

User · Answer

Interestingly  I had the same exact issue and for me the problem was that my connection was timing out  To be able to see more details on my connections  I added  mail- gt SMTPDebug   4  to my phpmailer  look up how to capture the debug since the default output function is echo    Here s the result   SMTP - gt  get lines     data was    SMTP - gt  get lines     str is    SMTP - gt  get lines     data is    SMTP - gt  get lines    timed-out  10 seconds  SMTP - gt  FROM SERVER  SMTP - gt  ERROR  DATA not accepted from server     The default timeout is set to 10 seconds  If your app can support more  add this line to your phpmailer    mail- gt Timeout   20

User · Answer

For AWS users who work with Amazon SES in conjunction with PHPMailer  this error also appears when your  from  mail sender isn t a verified sender   To add a verified sender    Log in to your Amazon AWS console  https   console aws amazon com Select  Amazon SES  from your list of available AWS applications Select  under  Verified Senders   the  Email Addresses  --   Verify a new email address  Navigate to that new sender s email  click the confirmation e-mail s link    And you re all set

User · Answer

First you better set debug to TRUE       email- SMTPDebug   true    Or temporary change value of public  SMTPDebug   false  in PHPMailer class   And then you can see the full log in the browser  For me it was too many emails per second       SMTP - gt  FROM SERVER XXX XX XX X Ok SMTP - gt  get lines     data was    SMTP - gt  get lines     str is  XXX XX XX X Requested action not taken  too many emails per second   SMTP - gt  get lines     data is  XXX XX XX X Requested action not taken  too many emails per second   SMTP - gt  FROM SERVER XXX XX XX X Requested action not taken  too many emails per second SMTP - gt  ERROR  DATA command not accepted from server  550 5 7 0 Requested action not taken  too many emails per second       Thus I got to know what was the exact issue

User · Answer

In my case the problem was with the content of mail  When I changed content to simpler content without HTML  it worked  But after updating the phpmailer everything solved

User · Answer

In my case in cpanel i have  Register mail ids  option where i add my email address and after 30 minutes it works fine with simple php mail function

User · Answer

I was experiencing this same problem   In my instance the send mail was timing out because my Exchange server was relaying email to a server on the internet   That server had exceeded it s bandwidth quota   Apparently php mailer has some built in timeout and it wasn t long enough to see the actual message

User · Answer

in my case I was using AWS SES and I had to verify both  FromEmail  and  Recipient   Once done that I could send without problems

User · Answer

We send email via the Gmail SMTP servers  and we get this exact error from PHPMailer sometimes when we hit our Gmail send limits    You can check if it s the same thing happening to you by going into Gmail and trying to manually send an email  In our case that displays the more helpful error message about sending limits   https   support google com a answer 166852 hl en

User · Answer

set phpmailer to work in debug to see the  real  error behind the generic message  SMTP Error  data not accepted  in our case the text in the message was triggering the smtp server spam filter      email- gt SMTPDebug   true

User · Answer

Try to set the port on 26  this has fixed my problem with the message  data not accepted

User · Answer

your server dosen t allow different sender and username you should config   mail- gt From like  mail- gt Username

User · Answer

I was hitting this error with phpMailer   Amazon SES  The phpMailer error is not very descriptive   2  message  SERVER - gt  CLIENT  554 Transaction failed  Expected      got     1  message   2  message  SMTP Error  data not accepted    For me the issue was simply that I had the following as content type    phpmailer- gt ContentType    text html  charset utf-8 r n     But that it shouldn t have the linebreak in it    phpmailer- gt ContentType    text html  charset utf-8         I suspect this was legacy code from our older version  So basically  triple check every  phpmailer setting you re adding - the smallest detail counts

[php] phpmailer - The following SMTP Error: Data not accepted

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