Solved

SMTP RCPT error

Posted on 2009-07-16
3
1,504 Views
Last Modified: 2013-11-30
I get bounce back message "Grammar error reported for RCPT command: Error Command Code 501 was encountered waiting for a RCPT response (501  #5.5.2 syntax error 'RCPT TO:"

In the log there is this command: RCPT TO: <user@domain.com>

From what I've read really quick there shouldn't be a space, it should look like this:

RCPT TO:<user@domain.com>

Does this mean that my mail server is adding the space and the receiving server is rejecting it then?  Is there any way I can fix this?  We are using ISMail EP
0
Comment
Question by:sharkbot221984
  • 2
3 Comments
 
LVL 12

Accepted Solution

by:
kevin_u earned 500 total points
ID: 24875626
A space there is normally not a problem.  Maybe something else is in there?  tab?  maybe a trailing space (i remember a mail server that had a bug in it when there was a trailing space).  I'd call support for ISMail.  It may simply be a problem with the destination server.  You may want to contact them as well.
0
 
LVL 8

Author Comment

by:sharkbot221984
ID: 24883460
ISMail is defunct no support there.  I agree the extra space shouldn't be a problem.  I did send 2 more messages and the mail logs show that the destination server gave 250 OK for the RCPT command on those, no bounce back (yet).  I did a tracert to the destination domain and it timed out at their ISP I think.  Not sure that there is anything else to be done, other emails are flowing in/out normally.
0
 
LVL 8

Author Closing Comment

by:sharkbot221984
ID: 31604392
The extra space is always present in the log files and other servers receive our mail fine.  The extra space I doubt is the issue.
0

Featured Post

Three Reasons Why Backup is Strategic

Backup is strategic to your business because your data is strategic to your business. Without backup, your business will fail. This white paper explains why it is vital for you to design and immediately execute a backup strategy to protect 100 percent of your data.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Granting full access permission allows users to access mailboxes present in their database. By giving full access permission one can open and read the content of any mailbox but cannot send emails from that mailbox.
Phishing attempts can come in all forms, shapes and sizes. No matter how familiar you think you are with them, always remember to take extra precaution when opening an email with attachments or links.
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager
Internet Business Fax to Email Made Easy - With eFax Corporate (http://www.enterprise.efax.com), you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…

809 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question