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On my local machine, I wish to send mail through SMTP on my Windows Server.

I understand that I need to authorise my machine's local IP in relay restrictions. However, this is not ideal as I'll need to modify this everytime my IP changes.

Is there any more flexible way in which I can authorise this connection? Thanks in advance.

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Why would your (internal) ip address change? – joeqwerty Nov 16 '11 at 2:49
@joeqwerty I use my development machine in multiple locations. Apologies if I didn't make myself clear. – Jonathan Nov 16 '11 at 2:57
Setup a VPN to your network or the server, assign yourself a static IP in the VPN. – Zoredache Nov 16 '11 at 3:09

The IPs of localhost, i. e. and ::1, don't change very frequently.

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