email send speeds are slow

I have recently transferred my email/web provider to GoDaddy.  When I send emails they take a long time to leave the outbox.  It is fine without the signature which has a couple of small gifs but with the signature the send time is over a minute and i have had to increase the timeout to stop errors from occurring.  
This problem didn't exist with my previous supplier and the broadband upload speed is fine.  Godaddy have been unable to help so far.  I was wondering what the limiting factors are and if infact GoDaddy servers are not that quick?
IT Dave
aliveitAsked:
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aliveitConnect With a Mentor Author Commented:
the client seems happy with the send speeds right now. I will close this issue now although I'm not sure that it is solved, the client just seems satisfied that they can send emails.  thanks for all your help

DT
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Glen KnightCommented:
Do you have any SPAM/Virus software that is set to scan your SMTP? If so disable this and see if it makes a difference in performance.
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aliveitAuthor Commented:
There is AV protection but I turned it off and it made no difference.  the speed problem occurred on all computers (6) once I made the switch to GoDaddy and 2 of the computers don't have AV at all.
I have found that reverse dns returns an error [Warning - Reverse DNS does not match SMTP Banner] but Godaddy claims that I should not believe the results from mxtoolbox.  Seems a bit strange.  So they were unable to help me remove the error.
Dave
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nociSoftware EngineerCommented:
It's outgoing mail so it probably is somthing at go-daddy's input that is taking time.
The probably won't disable they anti-spam controls for just you.

OTOH, did they they supply you with a way to logon to theyr SMTP service? so the mail isn't anonymous anymore?
In that case use the credential provided.

Another approach can be to have the external delivery done by a local MTA (say exim/postfix/sendmail/exchange?) to absorb the mail from your useragent and then send it at it's leisure?
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aliveitAuthor Commented:
mail gets sent via godaddy smtp service "smtpout.europe.secureserver.net". I don't understand sending by a local MTA, have never done this before.
I would like to understand why reverse dns isn't configured correctly.  although godaddy say that it is correct all the symptoms show that it is not correct.  a lot of their emails get marked as spam, slow sends and reverse dns error on mxtoolbox.com.
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nociSoftware EngineerCommented:
If you know your public IP address then you can check the resolving of the ip address:

dig -x your.ip.addr.ess  
And if you want more info:
dig -x your.ip.addr.ess   +trace


Sending using a local MTA, means you run a mailserver on your own PC and have your mailfrontend talk to that mail server, that will keep track of sending mail and resending it after a while.
At least it will help when greylisting is used. It will not help when reverse DNS is failing.
In the last case you are toatlly dependant on your ISP to have the correct name & number for forward & reverse resolving of your domainname/ip address.
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aliveitAuthor Commented:
I have discussed this problem now with GoDaddy extensively and on many occasions.  The go daddy service appears to be working perfectly and infact if I test send using my clients email account from my own computer at my office the emails send fine.  in my mind that rules out any problems at GoDaddy.  This leaves Outlook as the broadband upload speed is the same as my company network which i just tested it on.  When I spoke with Microsoft partner network they implied that it would be an Outlook problem that they could help with although it would cost £200 for them to do it.  amazing, i just spent £1000 on MS office software and they are willing to fix it for a further £200!
I don't know of anything in outlook that could slow/stop emails.  Could this still be related to the fact that I upgraded to genuine microsoft from a fake version?
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nociSoftware EngineerCommented:
the GBP 200,-- seems to be normal tariff to get MS motivated to start an investigation.
(Independant if they solve it or not).

In some cases the GBP 200,-- is waived. (Mainly if they get a lot of the same requests, or if a solution already is in the KB).
all i can think of is Name lookups. It may be a misconfigured DNS server that takes more time to.
The other thing is greylisting by the server (temporary rejecting unknown mail sources) until some timedid pass (mostly 30-45 minutes).
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aliveitAuthor Commented:
a complete solution was not found
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