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How to resolve “Sender verify failed” SMTP mail error in cPanel/WHM Exim servers

How to resolve “Sender verify failed” SMTP mail error in cPanel/WHM Exim servers

SMTP error from remote mail server after RCPT TO:<user2@domain2.com>:
host mx.server.com [xxx.xxx.xxx.xxx]: 550-Verification failed for <user1@domain1.com>
550-No Such User Here
550 Sender verify failed

Bobcares provides website management services to website owners. Email errors are the most commonly encountered issues by the end customers.

Amongst these mail errors, ‘Sender verify failed’ is a prominent error that creates so much hassle to account owners. We’ve seen that it can be caused by issues ranging from improper file permissions to RFC non-compliance. (more…)

How to fix “550 Requested action not taken: mailbox unavailable or not local” in Plesk servers

How to fix “550 Requested action not taken: mailbox unavailable or not local” in Plesk servers

Mail errors are commonly encountered issues in our role as Website support specialists. In Plesk Windows servers, the default mail server is MailEnable.

Plesk account owners sometimes report the MailEnable error ‘SMTP server response: 550 Requested action not taken: mailbox unavailable or not local’ when trying to send out mails or when managing their account functions through the Plesk panel. (more…)

550: No such user here – How to resolve email error 550 in cPanel/WHM Linux servers

550: No such user here – How to resolve email error 550 in cPanel/WHM Linux servers

550: No such user here is a common error reported by cPanel users who primarily use an external mail server (like a corporate MX) to store their mail.

These include users who are trying to setup a mail forward to an external mail server, those who recently migrated or made changes to their account. (more…)

503 Valid RCPT command must precede DATA – How to resolve this Outlook error in cPanel/WHM hosted email accounts

503 Valid RCPT command must precede DATA – How to resolve this Outlook error in cPanel/WHM hosted email accounts

Customers who use Outlook to access email accounts hosted on cPanel/WHM email servers sometimes report the error 503 Valid RCPT command must precede DATA when trying to send their mails.

This is often reported for servers in which SMTP authentication is enabled. (more…)

The host could not be found – How to resolve Outlook error (0x800ccc0d) in Odin Plesk email accounts

The host could not be found – How to resolve Outlook error (0x800ccc0d) in Odin Plesk email accounts

Occasionally Odin Plesk customers report inability to send or receive emails reporting the following Outlook errors:

The host 'mail.domain.com' could not be found. Please verify that you have entered the server name correctly. Account: 'username', Server: 'mail.domain.com', Protocol: SMTP, Port: 25, Secure(SSL): No, Socket Error: 11001, Error Number: 0x800CCC0D.

(more…)

How to sync your text messages (sms) in an Android phone with an Exchange email account

How to sync your text messages (sms) in an Android phone with an Exchange email account

For businesses that use SMS for business correspondence (eg., taking orders, getting instructions from customers, etc.), it is important to sync them with the official mail address. It allows easy sharing of client instructions, and facilitate faster service provisioning. (more…)