Home > Smtp Error > Smtp Error 5.2.1

Smtp Error 5.2.1

If there are other accounts from your mail server that are sending spam, AOL may block the IP because of that traffic and not because of your account alone. Message too big 535 - Multiple servers using same IP. Log in to Reply May 16, 2013 at 2:36 pm, ksimpson said: @aszart How long has it been since the compromise was resolved? I use the same "parse and substitute" code in our contact form where a user's email address would normally be inserted as the Reply-to. Check This Out

Unknown host. 515 - Destination mailbox address invalid 517 - Problem with senders mail attribute, check properties 521 - Domain does not accept mail 522 - Recipient has exceeded mailbox limit Are there different types of bounce codes? For more information regarding Google's sending limits, review this article. 454, "4.5.0", SMTP protocol violation, no commands allowed to pipeline after STARTTLS, see RFC 3207. 454, "4.7.0", Cannot authenticate due to This can be caused by a non existent email address, DNS problem, or your email was blocked by the receiving server. https://www.mailchannels.com/2012/09/why-did-i-get-521-5-2-1-conb1-httppostmaster-info-aol-comerrors554conb1-html/

RFC 821 SEND Send. I just use the standard PHP mail() function and this has worked ok for years. Kindest Regards, Scott M Reply himanshu n/a Points 2015-10-21 3:47 pm Hi My name is himanshu. All Rights Reserved

en results found Do These help?

The email server typically will try to send it again till it reaches retry timeout. 5 Permanent or Fatal error. RFC 2821 EHLO Extended Hello. This might not scale well to a larger customer base of users who ignore instructions and just hit Reply. As soon as the Reply-To header is removed or changed to a non-AOL address, the mail is delivered correctly.

This error occurs if the sender account is disabled or not registered within your G Suite domain. 550, "5.7.1", Email quota exceeded. 550, "5.7.1", Invalid credentials for relay. 550, "5.7.1", Our system For more information, review this article. 550, "5.7.1", The user or domain that you are sending to (or from) has a policy that prohibited the mail that you sent. You can also find resources online for more information about individual bounce codes. http://www.coldnet.net/tech/smtpcodes.htm Mailbox may have moved. 5.1.7 Problem with senders mail attribute, check properties sheet in ADUC. 5.2.x NDR caused by a problem with the large size of the email. 5.2.1 The message

[email protected] http://assets0.desk.com/ false desk Loading seconds ago a minute ago minutes ago an hour ago hours ago a day ago days ago about false Invalid characters found /customer/en/portal/articles/autocomplete Read Article #000000 Unable to process ATRN request now 452 Requested action not taken: insufficient system storage. 453 You have no mail. 454 TLS not available due to temporary reason. How is being able to break into any Linux machine through grub2 secure? X can be a 4 or a 5 depending on is its Temporary or Permanent.

Log in to Reply April 22, 2013 at 10:17 am, ksimpson said: @aszart If AOL is continuing to list you, then chances are there is something your system is sending to AOL http://geekswithblogs.net/BWCA/archive/2009/06/09/another-reason-for-a-5.2.1-undeliverable-message-ndr.aspx Ready to start TLS. 221 Domain service closing transmission channel. 250 OK, queuing for node node started. share|improve this answer answered Jan 30 '15 at 17:07 waza-ari 247216 add a comment| up vote 1 down vote Ditto what waza-ari said (AOL will not deliver email that is sent However, I cannot say whether this is due DMARC or not.

Name: *And who are you? http://phabletkeyboards.com/smtp-error/smtp-error-could-not-connect-to-smtp-host-phpmailer-yahoo.php Also, use square brackets in the IP address [] You can get this same NDR error if you have been deleting routing groups. 4.6.5 Multi-language situation. Reply Arn Staff 35,172 Points 2016-06-10 12:06 pm Hello Cristian, I took a close look at the top-level-domain used for the email address (infovia.com.ar). ADMIN_EMAIL ); Many thanks Steve php email email-headers aol share|improve this question asked Jul 23 '14 at 9:48 SteveJarvis 28113 you are probably on there blocked list., You have

Below is a list of the Standard SMTP error codes and the Extended SMTP (ESMTP) error codes. Encryption required for requested authentication mechanism. 534 Authentication mechanism is too weak. 538 Encryption required for requested authentication mechanism. 550 Requested action not taken: mailbox unavailable. 551 User not local; please For example, when trying to send an email to [email protected] nonexistantdomain.com. [Example kindly sent in by Paul T.] 5.1.3 Another problem with contacts. http://phabletkeyboards.com/smtp-error/smtp-server-error-sorry-invalid-mail-from-for-open-smtp-session.php How do you say "enchufado" in English?

Once we receive a bounce message from a mail server, we use the bounce code to determine if the bounce is a hard bounce (permanent failure) or a soft bounce (temporary If I am told a hard number and don't get it should I look elsewhere? Learn more here. 550, "5.1.1", The email account that you tried to reach does not exist.

Resource: RFC3463 (January 2003); SMTP Enhanced Codes Registry (IANA, February 2012) Bounce Codes for Popular Services Yahoo AOL Outlook.com Comcast Cox Postini Not what you're looking for?

In the first of a series of blog posts where we attempt to demystify the most common SMTP error codes, today we discuss AOL's 521 error code: 521 5.2.1 : (CON:B1) Make sure it matches the SMTP publishing rule. 5.7.4 Extra security features not supported. Please check out our article: Why do email servers get blacklisted. Please resend your message at a later time.

What else can I try? To protect our users from spam, mail sent from your IP address has been blocked. An interesting hint can be found at the AOL postmaster blog introducing DMARC. http://phabletkeyboards.com/smtp-error/smtp-error-from-remote-server-in-greeting-host-smtp-in-orange-fr.php Try sending a message via your code to the address provided by mail-tester.com, it may help you find the explanation.

If there are other AOL-mails in the TO header, those delivered and not blocked. Should I use the formal form (~ます) on the buttons of an app? Search Search Ask the Community! I have system code that emails 2 people if one of them accesses the other's research data (it's a collaborative research system, so users want to know if another person shares

If you receive an email bounce, you can look in the bounce message to find the proper error code that will give you the reason for the bounce. This is what appears to be happening based on the fact that you're changing public IP addresses and then your mail starts working again. I suggest using a 'recognized' SMTP service (such as Gmail or SendGrid) in this case. –Dai Jul 23 '14 at 9:58 Thanks guys.....off to do some reading and research. One user is probably using an Alternate Recipient with the same email address as a contact. 5.4.7 Delivery time-out.

If you received this error message in your inbox, it means that you tried to send someone at AOL an email message, and AOL's mail server rejected the connection because it's It could also be that the delivery directory on the Virtual server has exceeded its limit. (Default 22 MB) 4.3.1 Not enough disk space on the delivery server. No available route 546 - Email looping 547 - Delivery time-out 550 - Requested action not taken: mailbox unavailable 551 - User not local; please try forward path 552 - Requested Kindest regards, Arnel C.

If not, visit http://postmaster.aol.com/Postmaster.FeedbackLoop.php and create a feedback loop account. For example, 5.2.1 is a Permanent Error where the receiving email is not accepting messages. Check the Global Settings, Message Delivery properties. 5.5.5 Wrong protocol version 5.6.3 More than 250 attachments. 5.7.1 Permissions problem. I even checked at the ICANN (https://whois.icann.org/en/lookup?name=infovia.com.ar) site and it's not recognized.