Hi, thank you for contacting JustAnswer.com. My name is Russell. I will do my best to provide the right answer to your question.
(I regret that I am not able to offer Secure Remote Assistance service at this time; However, your request is still open to other Experts in this category, and one of them may pick up on it at any time.)
The crucial part of that error message that you quoted, is the "554 message not allowed".
That may mean, that your email has violated policy in one of these respects (for instance):
- objectionable links (e.g. links that pretend to be related to one web server, but point to another)
- malicious attached files (e.g. one that Yahoo! Mail's scanners have detected malware within)
- bad header information (misleading header information is typical of spammers and other shady email senders.)
I suspect and I recommend, that you scan your attached file (and your whole computer) with a good-quality anti-virus scanner, to find if there might be a violation in the second sense listed above, of detectable malware infecting your files or your attached file(s).
Then your computer probably has a file infection that any email destination detects... or, that your sending email server is eliminating.
I recommend using a good anti-virus scanner (to scan your whole hard disk, including the attachment file(s)), such as Norton products, or McAfee products, or TrendMicro, or (if you cannot afford the expense of the preceding-mentioned)
which offers a good-quality free anti-virus scanner.
And yes, I would avoid a remote connection with your machine myself, by preference, under the circumstances... but your request is open to other Experts, some of whom might not think it an objection.
Scanning your system would be advisable under the circumstances, for sure.
Good. Let me know the results whenever there are any.
Someone may yet take up your offer of Remote Assistance... but I cannot, myself. I cannot speak for others in that respect, though!
Changing your password ***** ***** matter, and will not help with this problem (yet) and might add difficulties.
Other Experts do see your request for secure remote assistance.
(Remember that it is Sunday. Some may be offline for a while.)
Good, if your S.S. scan found stuff to remove. See what Avast finds and removes.
It is open to others!
Duplicate postings will not prevent it being Sunday.
Duplicate postings will probably be marked as such and closed (it's a policy here, to give everyone an equal chance at having their question responded to.)
Do you want me to Opt Out of this question? that will not make the Secure Remote request more prominent, just by the way.
It would be good to wait for Avast to finish, but yes, you can try that!
Do not try changing your password ***** unless Avast detects spyware.
Do a Full Scan... this is a serious problem and 'quick fixes' are not, repeat not, appropriate for a serious computer problem, that disables your email so extensively (if not, I am glad to note, completely.)
Yes, please. Full Scan with Avast is the idea - provided that you have fully updated Avast's signatures to recognize malware, first. As I said, quick fixes are not appropriate.
It's OK with me if running Avast Deep Scan or Full Scan takes a while.
You can always return to this case at
Thanks. And, you're welcome for the help.